Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
Inspect for the following conditions:
- Faulty electrical circuit/open or short to the ground between the solenoid and the PCM
- A faulty PCM
- A faulty solenoid
An intermittent may be caused by the following conditions:
- A poor connection
- Rubbed through wire insulation
- A broken wire inside the insulation
Inspect the PCM harness connectors for the following conditions:
- Backed out terminal
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Inadequate terminal-to-wire connections
Perform the following steps if DTC P1790 cannot be duplicated:
- Read the information in the freeze frame data.
- Use the data to determine the vehicle operating conditions when the DTC was set.
If any wiring repairs need to be made, refer to Repair Procedures in Electrical Diagnosis.