B212E-11

B212E-11-IGNITION RUN/ACC CONTROL - CIRCUIT SHORT TO GROUND





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Body Control Module (BCM) receives the network communication message from the Radio Frequency (RF) Hub indicating run or accessory operation is requested. The BCM provides a voltage output through the accessory delay relay control circuit, which connects to the coil side of the Ignition Run/Acc Relay.

- When Monitored:
With the Ignition Run/Acc Relay active.

- Set Condition:
When the Body Control Module (BCM) detects a low condition on the (P305) Accessory Delay Relay Control circuit.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. With the scan tool, read DTCs.

Does the scan tool display DTC: B212E-11-IGNITION RUN/ACC CONTROL - CIRCUIT SHORT TO GROUND?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK THE (P305) ACCESSORY DELAY RELAY CONTROL FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Junction Block C2 harness connector.
3. Disconnect the BCM E harness connector.
4. Measure the resistance between ground and the (P305) Accessory Delay Relay Control circuit.

Is the resistance above 10k Ohms?

Yes

- Go To 3

No

- Repair the short to ground in the (P305) Accessory Delay Relay Control circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE BCM FOR CORRECT OPERATION
1. Reconnect the BCM E harness connector.
2. Turn the ignition on.
3. Using a 12-volt test light connected to ground, check (P305) Accessory Delay Relay Control circuit at the Junction Block C2 harness connector.
4. With the scan tool, actuate the Ignition RUN/ACC 1 output.

Does the test light illuminate brightly?

Yes

- Replace the Junction Block. Junction Block - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Body Control Module (BCM). Body Control Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.