Short Circuit To Supply

SPECIAL TOOLS
Volvo scan tool No. 998 8686, or equivalent

SHORT-CIRCUIT TO SUPPLY
1. Checking, Lock-up solenoid SL
- Preparation:
Ignition ON
Move gear selector to position P.
- Activate solenoid SL.
- Read off the solenoid status.
- The status should alternate between OFF/ON.
- Does the status alternate between OFF/ON?
YES: Proceed to step 5
NO: Proceed to step 2Yes:





2. Checking for short-circuit
- Preparation:
Ignition ON
- Check wiring between solenoid SL and Transmission Control Module (TCM) #A9 for short-circuit to supply according to step 4 of checking for permanent faults. Checking For Permanent Faults
- Then continue with step 3





3. Verification
- After repairs have been completed they must be verified as follows to ensure the fault has been eliminated:
- Preparation:
Ignition ON
- Move gear selector to position P.
- Activate solenoid SL.
- Read off status for solenoid SL.
- The status should alternate between OFF/ON.
- Does the solenoid status alternate between OFF/ON?
YES: Fault corrected
NO: Proceed to step 4Yes:
4. Fault-tracing information
- The verification result shows that the fault persists.
- Do you want to exit fault-tracing?
YES: Fault not corrected
NO: Proceed to step 1





5. Intermittent fault
- Preparation:
Ignition OFF
- Check wiring between solenoid SL and TCM #A9 for intermittent short-circuit to supply according to step 4 of checking for intermittent faults. Checking For Intermittent Faults
- Then continue with step 6
6. Fault-tracing information
- For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.
- Do you want to repeat fault-tracing?
YES: Proceed to step 1
NO: Operation done