Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking connectors and wiring
Check the engine speed (RPM) sensor connector. Check for contact resistance and oxidation.
Check the signal cable between the engine speed (RPM) sensor terminal #1 and engine control module (ECM) terminal #A48 (#A48). Check the signal cable between engine speed (RPM) sensor terminal #2 and engine control module (ECM) terminal #A66 (#B6). Check for a short-circuit to supply voltage. Check for an short-circuit to ground. Check for an open-circuit.
Check the carrier plate, search for damage and other defects.
Remedy as necessary.

Other information:
- To connect the breakout box / access the control module, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box
- To access or replace the engine speed (RPM) sensor, see Engine speed (RPM) sensor, replacing Removal and Replacement
- For information about signals on 5 cylinder engines, see Signal specification Signal Specifications
- For information about signals on 6 cylinder engines, see Signal specification Signal Specifications
- 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
- Reinstall the connectors, components etc.
- Start the engine.
The car will not start if there is a fault in the engine speed (RPM) sensor signal.

Does the car start?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - 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 connectors and wiring

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