Volt

Power Outlet Receptacle Malfunction - DTC B1445

The body control module (BCM) controls the wired power components by applying voltage to the ignition voltage circuit at harness connector X4 terminal 12. Voltage is applied when the vehicle power mode is Vehicle ON or Vehicle in Service Mode.

The DTC will set only when the module requests the output and there is a short to ground in the ignition voltage circuit.

The module output driver will be shut down and not supply voltage to the circuit.

Schematic Reference

Cigar Lighter/Power Outlet Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Outlets Description and Operation

Electrical Information Reference

Install a 12 V DC accessory into a appropriate X80 Accessory Power Receptacle or activate the E32 Cigarette Lighter Receptacle. Vehicle in Service Mode, command the Auxiliary Power Relay Command ON and OFF with a scan tool. The KR76 Retained Accessory Power Relay should click and the 12 V DC accessory or the E32 Cigarette Lighter Receptacle should have power.

DTC B1445 02 and Accessory Power Receptacle or Cigarette Lighter Malfunction

1. Vehicle OFF, disconnect the KR76 Retained Accessory Power Relay.
2. Test for less than 5 Ω between the ground circuit terminal 41 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Verify that a test lamp does not illuminate between the control circuit terminal 40 and earth.

⇒	If the test lamp illuminates, test the control circuit for a short to voltage.

4. Vehicle in Service Mode, verify that a test lamp illuminates between the ignition circuit terminal 40 and earth.

⇒	If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.

5. Verify that a test lamp illuminates between the B+ circuit terminal 43 and earth.

⇒	If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 42 for a short to earth.

6. Disconnect the harness connector at the inoperative X80 Accessory Power Receptacle or E32 Cigarette Lighter Receptacle.
7. Test for less than 5 Ω between the ground circuit terminal C and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

8. Connect the harness connector at the appropriate X80 Accessory Power Receptacle or E32 Cigarette Lighter Receptacle.
9. Connect a 20 A fused jumper wire between the KR76 Retained Accessory Power Relay B+ circuit terminal 43 and the control circuit terminal 42. Verify that the accessory has power.

⇒	If the accessory does not have power, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the appropriate X80 Accessory Power Receptacle or E32 Cigarette Lighter Receptacle.

10. If all circuits test normal, test or replace the KR76 Retained Accessory Power Relay.

Relay Test

1. Vehicle OFF, disconnect the KR76 Retained Accessory Power Relay.
2. Test for 60-180 Ω between terminals 40 and 41.

⇒	If not within the specified range, replace the relay.

3. Test for infinite resistance between the following terminals:

•

43 and 40

•

43 and 42

•

43 and 41

•

41 and 42

⇒	If not the specified value, replace the KR76 Retained Accessory Power Relay.

4. Install a 20 A fused jumper wire between relay terminal 40 and 12 V. Install a jumper wire between relay terminal 41 and earth. Test for less than 2 Ω between terminals 42 and 43.

⇒	If greater than specified range, replace the KR76 Retained Accessory Power Relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.