P2671

P2671-CONTROL SUPPLY CIRCUIT 2 VOLTAGE HIGH







- When Monitored:
When ignition is powered off. Engine has run this ignition cycle. ASD Relay 2 is turned off.

- Set Condition:
The PCM detects that the ASD Relay 2 sense voltage is above a calibrated threshold for a calibrated period of time. Single trip fault, three good trips to reset the MIL.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.Pre-Diagnostic Troubleshooting Procedure

1. DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM).
3. With the scan tool, actuate the Auto Shutdown (ASD) Relay 2 Control State.
4. With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Go to 2

No

- Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure.Checking for an Intermittent DTC

2. (F343) ASD RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE
1. Turn the ignition off.
2. Remove the Auto Shutdown Relay 2.
3. Turn the ignition on.
4. Measure the voltage of the (F343) ASD Relay Output circuit in the Auto Shutdown Relay 2 connector.

Is there any voltage present?

Yes

- Repair the (F343) ASD Relay Output circuit for a short to voltage.
- Perform the PCM Verification Test.PCM Verification Test

No

- Go to 3

3. (K332) ASD RELAY 2 CONTROL CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Disconnect the Powertrain Control Module (PCM) connector.
3. Measure the resistance between ground and the (K332) ASD Relay 2 Control circuit in the Auto Shutdown Relay 2 harness connector.

Is the resistance below 100 ohms?

Yes

- Repair the (K332) ASD Relay 2 Control circuit for a short to ground.
- Perform the PCM Verification Test.PCM Verification Test

No

- Go to 4

4. AUTO SHUTDOWN RELAY 2
1. Turn the ignition off.
2. Replace the Auto Shutdown Relay 2 with a known good relay.
3. Connect the Powertrain Control Module (PCM) connector.
4. Turn the ignition on.
5. With the scan tool, actuate the Auto Shutdown (ASD) Relay 2 Control State.
6. With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Go to 5

No

- Replace the Auto Shutdown Relay 2.
- Perform the PCM Verification Test.PCM Verification Test

5. POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Auto Shutdown Relay 2 and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Search for any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform the PCM Verification Test.PCM Verification Test

No

- Replace and program the Powertrain Control Module (PCM).
- Perform the PCM Verification Test.PCM Verification Test