Signal Too High. Permanent Fault

Checking Solenoid Valve Signal Cable
- Ignition off.
- Disconnect connector from solenoid valve.
- Ignition on.
- Connect a test light (3 W bulb at least) between solenoid valve connector terminal 2 and ground.
- The test light should not light.

If reading is OK:
^ Try a new solenoid valve.
^ Then proceed to Verification section below.

If reading is incorrect:
^ Check signal cable between solenoid valve connector terminal 2 and engine control module (ECM) # A37 for a short-circuit to supply voltage.
^ Then proceed to Verification section below.





Verification
- After carrying out the repair, check that the fault has been remedied as follows.
- Ignition off.
- Solenoid valve and engine control module connected.
- Ignition on.
- Activate solenoid valve.
- A "clicking sound" is heard from the solenoid valve when it is activated.
- Is the solenoid valve working?

If reading is OK:
^ Fault corrected

If reading is incorrect:
^ Proceed to test step below.

Fault-tracing Information
- The verification result shows that the fault persists.
- Do you want to exit fault-tracing?

Yes:
^ Fault not corrected

No:
^ Return to Checking Solenoid Valve Signal Cable section above.