2010 Cadillac Truck SRX AWD V6-3.0L Page 304
2010 Cadillac Truck SRX AWD V6-3.0L Page 304 瀚慖f the E4G headlamp-left low beam and the E4H headlamp-right low beam do not activate, test the control circuit for a short to ground or an open/high resistance. 6. Connect a test lamp between the B+ circuit terminal 86 and the control circuit terminal 85. 7. Ignition ON, command the Low Beam Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. 瀚慖f the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM. 瀚慖f the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM. 8. If all circuits test normal, test or replace the KR49 headlamp low beam relay. Component Testing Relay Test 1. Ignition OFF, disconnect the KR49 headlamp low beam relay. 2. Test for 60-180 ohm between terminals 85 and 86. 瀚慖f not within the specified ran...