Signal Too High

Signal too high

Checking the function of the water pump




- Ignition on
- Activate the water pump.
Listen for a buzzing sound which indicates that the water pump is running.





Does the water pump function?

Yes - Intermittent fault

No - Checking components and wiring

-------------------------------------------------

Checking components and wiring
Check the cable between control module terminal #12 and water pump terminal 1. Check for a short-circuit to supply voltage.
The water pump must be replaced if no faults are found in the cable.
Remedy as necessary.

Other information:
- To access the control module or connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- To access or replace the water pump, see Water pump engine coolant heater, replacing Service and Repair
- With the ignition on and the water pump connector disconnected, the voltage between water pump terminal 1 (control module side) and ground should be approximately 0 V
- For other values, see Signal specification Signal Specification
- Checking wiring and terminals Checking Wiring And Terminals.














Continue - Verification

-------------------------------------------------

Verification




Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect connector, install components etc.
- Ignition on.
- Activate the water pump.
Listen for a buzzing sound indicating that the water pump is working.





Is the water pump working?

Yes - VERIFIED

No - VERIFICATION FAILEDPAPER

------------------------

VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

PAPER - No Fault Found

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

------------------------

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the function of the water pump

-------------------------------------------------

Intermittent fault
Check the cable between control module terminal #12 and water pump terminal 1. Check for an intermittent short-circuit to supply voltage.
Remedy as necessary.

Other information:
- To access the control module or connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- To access or replace the water pump, see Water pump engine coolant heater, replacing Service and Repair
- With the ignition on and the water pump connector disconnected, the voltage between water pump terminal 1 (control module side) and ground should be approximately 0 V
- For other values, see Signal specification Signal Specification
- Checking wiring and terminals Checking Wiring And Terminals.














Continue - Fault-tracing information
DONE

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - Fault Found

------------------------

Attempt New Test - Checking the function of the water pump

FAULT-TRACING FAILED - DONE

FAULT FOUND - Fault Found

-------------------------------------------------