Signal Too High

Signal too high

Checking the status




- Ignition on.
Activate the engine cooling fan (FC).
Check that the engine cooling fan (FC) starts when activated. The fault is permanent if the engine cooling fan (FC) does not start when activated. The fault is intermittent if the engine cooling fan (FC) starts.





Continue - Checking the components and wiring

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

Checking the components and wiring
Check the signal cable between engine control module (ECM) #A79 (#B19) and electric cooling fan module's connector #1 for short-circuit to voltage.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Engine Control Module (ECM)
- Checking wiring and terminals Checking Wiring And Terminals













Continue - Verification

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

Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Activate the engine cooling fan (FC).
Check that the engine cooling fan (FC) starts when activated.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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

VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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

Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the status

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