Signal Too Low

ECM-6100 ENGINE COOLING FAN CONTROL MODULE
SIGNAL TOO LOW

Reading off Diagnostic trouble code (DTC) status ECM-6100:



Note! When reading off the Diagnostic trouble code (DTC) status, other stored diagnostic trouble codes (DTCs) and their status will be listed.

- Read off diagnostic trouble code (DTC) status. Check the status of the relevant Diagnostic Trouble Code (DTC).

Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as permanent?
Yes - Skip to "Checking Components and Wiring - Permanent"
No - Continue below.


Checking component and wiring
Check cable between engine control module (ECM) #A7 (#A7) and engine cooling fan (FC) control module #1B for an intermittent short-circuit to ground according to Checking Wiring and Terminals or open-circuit according to Checking Wiring and Terminals

Remedy as necessary

Other information:
- Connecting the breakout box/accessing the control module, Connecting the Breakout Box (ECM)
- For information about signals, Pinout Values and Diagnostic Parameters


Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
--Testing Complete.--


Checking Components and Wiring - Permanent
Check the cable between engine control module (ECM) terminal #A7 (#A7) and engine cooling fan (FC) control module terminal #1B. Check for a short-circuit to ground according to Checking Wiring and Terminals or an open-circuit according to Checking Wiring and Terminals

Remedy as necessary

Other information:
- Connecting the breakout box/accessing the control module, Connecting the Breakout Box (ECM)
- For information about signals, Pinout Values and Diagnostic Parameters


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 all the 3 engine cooling fan (FC) speeds function.

Is the engine cooling fan (FC) working?
Yes - Testing Complete.
No - Continue below.


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.