Signal Too High

Signal too high

Diagnostic trouble code (DTC) status ECM-6000Air conditioning (A/C) relay. Signal too high

Reading off Diagnostic trouble code (DTC) status ECM-6000:
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) permanent?

Yes - Checking the wiring and component

No - Intermittent fault

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Intermittent fault





Signal too high. Intermittent fault

Checking cables
Check signal cable between control module #B44 (#B54) and air conditioning (A/C) relay #4 for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box.
- To access/replace the control module, see the relevant service procedure.
- To access/replace the air conditioning (A/C) relay, see the relevant service procedure.
- For information about signals, see Signal specification Signal Description / Specification.










Continue - Fault-tracing information

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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

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Attempt New Test - Checking cables

FAULT FOUND - DONE

DONE - DONE

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DONE - DONE

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Checking the wiring and component
Check the signal cable between control module terminal #B44 (#B54) and air conditioning (A/C) relay terminal #4. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- To access or replace the control module for the S70 and V70 -2000, see
- To access or replace the control module for the S60, S80 and V70 2000-, see Engine control module (ECM), replacing Service and Repair
- For information about signals, see Signal specification Signal Description / Specification
- For further information about the fuses and relays, see the Wiring Diagram
- Checking wiring and terminals Checking Wiring And Terminals.










Continue - Verification

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Verification




Verification

Verification

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








- Ignition off.
- Reconnect connectors, reinstall components
- Ignition on.
- Activate air conditioning (A/C) relay.
A click should be heard from the relay when it is activated.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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: Troubleshooting is complete for this DTC
NO: Repeat Procedure.

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