Showing posts with label 3. Ignition ON. Show all posts
Showing posts with label 3. Ignition ON. Show all posts

Wednesday, February 3, 2021

2010 Cadillac Truck SRX AWD V6-3.0L Page 66

2010 Cadillac Truck SRX AWD V6-3.0L Page 66



3. Ignition ON, verify the scan tool Deployment Loop Resistance parameter is greater than 5.12 ohm.



瀚慖f less than the specified range, test control circuit terminals for a short to ground. If the circuit tests normal, replace the K36 SDM.



4. Install a 3 A fused jumper wire between the following control circuit terminals. Verify the scan tool Deployment Loop Resistance parameter



is less than 1.8 ohm.



* circuit terminal 1 X1 and terminal 2 X1



* circuit terminal 4 X1 and terminal 3 X1



瀚慖f greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal,



replace the K36 SDM.



5. If all circuits test normal, test or replace the F107 driver steering wheel air bag.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and



Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)



* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming



B0013



DTC B0012 or B0013



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category



DTC Descriptors



DTC B0012 01



- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery



DTC B0012 02



- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground



DTC B0012 04



- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open



DTC B0012 0D



- Driver Steering Wheel Air Bag Deployment Loop Stage 1 High Resistance



DTC B0012 0E



- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Low Resistance



DTC B0013 01



- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery



DTC B0013 02



- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground



DTC B0013 04



- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open



DTC B0013 0D



- Driver Steering Wheel Air Bag Deployment Loop Stage 2 High Resistance



DTC B0013 0E



- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Low Resistance

Saturday, January 2, 2021

2010 Cadillac Truck SRX AWD V6-3.0L Page 804

2010 Cadillac Truck SRX AWD V6-3.0L Page 804



3. Ignition ON, verify that DTC C0280 54 is not set as a present DTC.



瀚慖f DTC C0280 54 is present, replace the K17 Electronic Brake Control Module (EBCM) and verify DTC does not reset. If the DTC



resets, replace the Q5 brake pressure modulator valve assembly.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic



Control Assembly - Antilock Brakes/Service and Repair/Brake Pressure Modulator Valve Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, programming and setup



C0287



DTC C0186, C0196, C019B, or C0287



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptor



DTC C0186 5A



- Lateral Acceleration Sensor Circuit Not Plausible



DTC C0186 71



- Lateral Acceleration Sensor Circuit Invalid Data



DTC C0196 00



- Yaw Rate Circuit Malfunction



DTC C0196 5A



- Yaw Rate Signal Not Plausible



DTC C019B 5A



- Yaw Rate Signal Not Plausible



DTC C0287 4B



- Longitudinal Acceleration Sensor Circuit Calibration Not Learned



DTC C0287 5A



- Longitudinal Acceleration Sensor Circuit Not Plausible



DTC C0287 71



- Longitudinal Acceleration Sensor Circuit Invalid Data



Diagnostic Fault Information



Circuit/System Description



The yaw rate, lateral acceleration and longitudinal acceleration sensors are combined into one multi-axis acceleration sensor, external to the



electronic brake control module (EBCM). The EBCM supplies a 12 V reference voltage to the multi-axis acceleration sensor. The multi-axis



acceleration sensor communicates with the EBCM via the high speed controller area network (CAN) serial data circuit. The EBCM activates the

Saturday, December 26, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1273

2010 Cadillac Truck SRX AWD V6-3.0L Page 1273



3. Ignition ON, connect a test lamp between the appropriate high voltage supply circuit and the high voltage control circuit. The Injector



Control Circuit Status should transition from Open to OK.



瀚慖f not the specified value, test for the following conditions in the ECM side of the harness:



* An open/high resistance in the high voltage supply circuit



* An open/high resistance in the high voltage control circuit



* A short to ground in the high voltage control circuit



* A short to voltage in the high voltage supply circuit



瀚慖f the circuits test normal, replace the K20 ECM.



Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to



remove the intake manifold to isolate the condition.



4. Ignition OFF, measure the resistance between the appropriate high voltage supply circuit and ground. The DMM should display OL ohm.



瀚慖f less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



5. Test for 2-3 ohm between the appropriate high voltage supply circuit and high voltage control circuit.



瀚慖f less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



瀚慖f greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open/high resistance. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector.



Component Testing



* Fuel Injector Solenoid Coil Test (LAU) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection



)Fuel Injector Solenoid Coil Test (LF1, LFW) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and



Inspection)



* Fuel Injector Balance Test (LAU) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests



and General Diagnostics/Fuel Injector Balance Test)Fuel Injector Balance Test (LF1, LFW) (See: Powertrain Management/Computers and



Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Injector Balance Test)



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 1)



* Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 2)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P0205



DTC P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, or P0277



(LF1)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0201



- Cylinder 1 Injector Control Circuit



DTC P0202



- Cylinder 2 Injector Control Circuit

Monday, December 21, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1359

2010 Cadillac Truck SRX AWD V6-3.0L Page 1359



3. Ignition ON, connect a test lamp between the appropriate high voltage supply circuit and the high voltage control circuit. The Injector



Control Circuit Status should transition from Open to OK.



瀚慖f not the specified value, test for the following conditions in the ECM side of the harness:



* An open/high resistance in the high voltage supply circuit



* An open/high resistance in the high voltage control circuit



* A short to ground in the high voltage control circuit



* A short to voltage in the high voltage supply circuit



瀚慖f the circuits test normal, replace the K20 ECM.



Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to



remove the intake manifold to isolate the condition.



4. Ignition OFF, measure the resistance between the appropriate high voltage supply circuit and ground. The DMM should display OL ohm.



瀚慖f less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



5. Test for 2-3 ohm between the appropriate high voltage supply circuit and high voltage control circuit.



瀚慖f less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



瀚慖f greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open/high resistance. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector.



Component Testing



* Fuel Injector Solenoid Coil Test (LAU) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection



)Fuel Injector Solenoid Coil Test (LF1, LFW) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and



Inspection)



* Fuel Injector Balance Test (LAU) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests



and General Diagnostics/Fuel Injector Balance Test)Fuel Injector Balance Test (LF1, LFW) (See: Powertrain Management/Computers and



Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Injector Balance Test)



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 1)



* Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 2)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P0270



DTC P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, or P0277



(LF1)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0201



- Cylinder 1 Injector Control Circuit



DTC P0202



- Cylinder 2 Injector Control Circuit

Saturday, October 31, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1348

2010 Cadillac Truck SRX AWD V6-3.0L Page 1348



3. Ignition ON, connect a test lamp between the appropriate high voltage supply circuit and the high voltage control circuit. The Injector



Control Circuit Status should transition from Open to OK.



瀚慖f not the specified value, test for the following conditions in the ECM side of the harness:



* An open/high resistance in the high voltage supply circuit



* An open/high resistance in the high voltage control circuit



* A short to ground in the high voltage control circuit



* A short to voltage in the high voltage supply circuit



瀚慖f the circuits test normal, replace the K20 ECM.



Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to



remove the intake manifold to isolate the condition.



4. Ignition OFF, measure the resistance between the appropriate high voltage supply circuit and ground. The DMM should display OL ohm.



瀚慖f less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



5. Test for 2-3 ohm between the appropriate high voltage supply circuit and high voltage control circuit.



瀚慖f less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



瀚慖f greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open/high resistance. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector.



Component Testing



* Fuel Injector Solenoid Coil Test (LAU) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection



)Fuel Injector Solenoid Coil Test (LF1, LFW) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and



Inspection)



* Fuel Injector Balance Test (LAU) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests



and General Diagnostics/Fuel Injector Balance Test)Fuel Injector Balance Test (LF1, LFW) (See: Powertrain Management/Computers and



Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Injector Balance Test)



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 1)



* Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 2)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P0265



DTC P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, or P0277



(LF1)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0201



- Cylinder 1 Injector Control Circuit



DTC P0202



- Cylinder 2 Injector Control Circuit

Sunday, August 23, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1381

2010 Cadillac Truck SRX AWD V6-3.0L Page 1381



3. Ignition ON, connect a test lamp between the appropriate high voltage supply circuit and the high voltage control circuit. The Injector



Control Circuit Status should transition from Open to OK.



瀚慖f not the specified value, test for the following conditions in the ECM side of the harness:



* An open/high resistance in the high voltage supply circuit



* An open/high resistance in the high voltage control circuit



* A short to ground in the high voltage control circuit



* A short to voltage in the high voltage supply circuit



瀚慖f the circuits test normal, replace the K20 ECM.



Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to



remove the intake manifold to isolate the condition.



4. Ignition OFF, measure the resistance between the appropriate high voltage supply circuit and ground. The DMM should display OL ohm.



瀚慖f less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



5. Test for 2-3 ohm between the appropriate high voltage supply circuit and high voltage control circuit.



瀚慖f less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



瀚慖f greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open/high resistance. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector.



Component Testing



* Fuel Injector Solenoid Coil Test (LAU) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection



)Fuel Injector Solenoid Coil Test (LF1, LFW) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and



Inspection)



* Fuel Injector Balance Test (LAU) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests



and General Diagnostics/Fuel Injector Balance Test)Fuel Injector Balance Test (LF1, LFW) (See: Powertrain Management/Computers and



Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Injector Balance Test)



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 1)



* Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 2)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P0299



DTC P0234 or P0299



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0234



- Engine Overboost



DTC P0299



- Engine Underboost



Diagnostic Fault Information

Saturday, July 4, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1370

2010 Cadillac Truck SRX AWD V6-3.0L Page 1370



3. Ignition ON, connect a test lamp between the appropriate high voltage supply circuit and the high voltage control circuit. The Injector



Control Circuit Status should transition from Open to OK.



瀚慖f not the specified value, test for the following conditions in the ECM side of the harness:



* An open/high resistance in the high voltage supply circuit



* An open/high resistance in the high voltage control circuit



* A short to ground in the high voltage control circuit



* A short to voltage in the high voltage supply circuit



瀚慖f the circuits test normal, replace the K20 ECM.



Note: Testing for the following steps is performed on the fuel injector side of the multi-way harness connector. It may be necessary to



remove the intake manifold to isolate the condition.



4. Ignition OFF, measure the resistance between the appropriate high voltage supply circuit and ground. The DMM should display OL ohm.



瀚慖f less than the specified range, test the high voltage supply circuit and the high voltage control circuit for a short to ground. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



5. Test for 2-3 ohm between the appropriate high voltage supply circuit and high voltage control circuit.



瀚慖f less than the specified range, test for a short between the high voltage supply circuit and high voltage control circuit. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector(s).



瀚慖f greater than the specified range, test the high voltage supply circuit and high voltage control circuit for an open/high resistance. If the



circuits/connections test normal, test or replace the appropriate Q17 fuel injector.



Component Testing



* Fuel Injector Solenoid Coil Test (LAU) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and Inspection



)Fuel Injector Solenoid Coil Test (LF1, LFW) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and



Inspection)



* Fuel Injector Balance Test (LAU) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests



and General Diagnostics/Fuel Injector Balance Test)Fuel Injector Balance Test (LF1, LFW) (See: Powertrain Management/Computers and



Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Fuel Injector Balance Test)



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Fuel Injection Fuel Rail Assembly Replacement - Bank 1 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 1)



* Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel



Rail/Service and Repair/Fuel Injection Fuel Rail Assembly Replacement - Bank 2)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming



P0274



DTC P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, or P0277



(LF1)



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC P0201



- Cylinder 1 Injector Control Circuit



DTC P0202



- Cylinder 2 Injector Control Circuit