2010 Cadillac Truck SRX AWD V6-3.0L Page 216

Circuit/System Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The parking assist

control module supplies 8 V to the object sensors via the 8 V reference circuit and provides ground via the low reference circuit. The parking assist

control module triggers the sensors in a sequential loop. After each sensor transmits, the parking assist control module uses the sensor echo

received through the signal circuit to calculate the distance and position of an object.

Conditions for Running the DTC

* Ignition ON

* The parking assist is activated. The activation takes place through putting in the reverse gear or through operating the parking assist switch.

Conditions for Setting the DTC

B138A 03

The parking assist control module has detected the 8 V reference circuit is less than 7.2 V.

B138A 07

The parking assist control module has detected the 8 V reference circuit is greater than 9.2 V.

Action Taken When the DTC Sets

* The parking assist is disabled.

* The driver information center displays SERVICE PARK ASSIST.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical

FORD