Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking the connectors




- Ignition off
- Check the throttle position (TP) sensor connector. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.













Was a fault detected?

Yes - Verification

No - Checking the cable and component

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Checking the cable and component
- Ignition off.
Check the signal cable between throttle position sensor #C and control module terminal #43. Check the power supply cable between throttle position sensor terminal #B and control module terminal #77. Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the throttle position (TP) sensor signal cable #C. Check for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Hint: The throttle position (TP) sensor receives 5 V from control module terminal #78.

Replace the throttle position (TP) sensor if no fault is found in the above fault-tracing.

Other information:
- To connect the breakout box, see Connecting the breakout box. EMS 2000 Connecting The Breakout Box. EMS 2000
- To replace the throttle position (TP) sensor, see Replacing throttle position (TP) sensor Service and Repair
- For information about signals, see Signal specification Signal Specification.













Continue - Verification

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Verification




Verification

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




- Reinstall the components, reconnect the connectors etc.
- Start the engine
- Rev the engine above 4500 rpm twice.




- Check whether the diagnostic trouble code (DTC) status changes to intermittent. If the fault has been remedied, the diagnostic trouble code (DTC) status should have changed to intermittent

Is the status of the diagnostic trouble code (DTC) intermittent?

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 the connectors

FAULT-TRACING FAILED - No Fault Found

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