Signal Too High

Signal too high

Checking the components and wiring
Check the resistance of the evaporative emission system (EVAP) valve.
Check the signal cable between engine control module (ECM) terminal #A9 (#A9) and evaporative emission system (EVAP) valve terminal #2. Check for a short-circuit to supply voltage.

Hint: Use an electrician's screwdriver with at least a 3 W bulb to determine whether there is a short-circuit to supply voltage in the cable.

Remedy as necessary.

Other information:
- Connecting the breakout box, B5254T2 Connecting the Test Box
- For information about signals for 5 cylinder engines: Signal specification Signal Specification
- For information about signals for 6 cylinder engines: Signal specification Signal Specification
- Component specifications Specifications
- For the location of components on 5 cylinder engines, see: Location of components Locations
- For the location of components on 6 cylinder naturally aspirated engines, see: Location of components Locations
- For the location of components on 6 cylinder turbocharged engines, see: Location of components Locations
- Checking wiring and terminals Checking Wiring And Terminals









Continue - Verification

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Verification




Verification

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








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on
- Activate the evaporative emission system (EVAP) valve.
A click should be heard when the evaporative emission system (EVAP) valve is activated.





Is the evaporative emission system (EVAP) valve working?

Yes - Verification completed

No - Fault-tracing information

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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 - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking the components and wiring

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