P0690
P0690-AUTO SHUTDOWN RELAY SENSE CIRCUIT HIGH
For a complete wiring diagram refer to Diagrams/Electrical.
- When Monitored:
With the ignition on and battery voltage greater than 10 volts.
- Set Condition:
If the FCM detects high voltage on the ASD Relay Sense circuit for more than 3.5 seconds.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1. ACTIVE DTC
NOTE: P0685 and P0688 ASD Relay Control circuit DTCs must be diagnosed before continuing.
Ignition on, engine not running.
With a scan tool, select View DTCs.
Is the DTC Active at this time?
Yes
- Go To 2
No
- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Intermittent Condition
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
2. (A955) ASD RELAY OUTPUT CIRCUIT CHECK
Turn the ignition off.
Remove the ASD Relay.
Ignition on, engine not running.
Measure the voltage on the (A955) ASD Relay Output circuit at the Relay connection.
Is the voltage above 1.0 volt?
Yes
- Go To 3
No
- Go To 4
3. (A955) ASD RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the IPM FCM 49 way harness connector.
Measure the voltage of the (A955) ASD Relay Output Circuit at the Relay connection.
Is the voltage above 1.0 volts?
Yes
- Repair the short to voltage in the (A955) ASD Relay Output circuit.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
No
- Replace the Front Control Module.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
4. ASD RELAY
Install the ASD Relay.
Ignition on, engine not running.
Disconnect the No.1 Fuel Injector harness connector.
Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit at the No.1 Fuel Injector harness connector.
Does the test light illuminate brightly?
Yes
- Replace the ASD Relay.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
No
- Replace Front Control Module.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test