P0690 Chevrolet Uplander I

1. The battery voltage is between 9-16 volts.
2. The ignition is OFF.
3. The powertrain relay has been commanded OFF.

Conditions for Setting the DTC

P0685

1. The commanded state of the ODM does not match and the actual state of the control circuit.
2. The condition is present for more than 5 seconds.

P0689

1. The ECM detects less than 10 volts on the ignition 1 voltage circuit from to the ECM.
2. The condition is present for more than 5 seconds.

P0690

1. The ECM detects more than 2 volts on the ignition 1 voltage circuit to the ECM.
2. The condition is present for more than 2 seconds.

Action Taken When the DTC Sets

1. The control module stores the DTC information into memory when the diagnostic runs and fails.
2. The malfunction indicator lamp (MIL) will illuminate.
3. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in failure records.
4. The driver information center (DIC), if equipped, may display a message.

Conditions for Clearing the DTC

1. A current DTC, last test failed clears when the diagnostic runs and passes.
2. A history DTC clears after 40 consecutive warm up cycles, if this or any other related diagnostic reports no other failures.
3. Clear the DTC with a scan tool.

Diagnostic Aids

1. This test procedure assumes that the vehicle battery has passed a load test and is completely charged. Refer to «Battery Inspection/Test»(ref-241706-S01956514862006081100000) .
2. When disconnecting electrical connectors or removing fuses and relays from a fuse block, always inspect the component electrical terminals for corrosion and the mating electrical terminals for correct tension.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

1. «Engine Control Module (ECM) Connector End Views»(ref-241687-S30768695062006081100000)
2. «Engine Controls Connector End Views»(ref-241687-S04858055362006081100000)