Sporadic Signal. Intermittent Fault

Sporadic signal. Intermittent fault

Checking wiring
Check the flywheel and carrier plate for damage.
Check the signal cables between engine control module (ECM) terminals #24 and #54 and engine speed (RPM) sensor terminals #1 and #2. Check for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check for an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check for an intermittent short-circuit to each other and for intermittent open-circuits according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.

Hint: With the ignition on, the voltage between engine speed (RPM) sensor connector terminals #1 and #2 must be approximately 1.8 V with the reading taken at the ground terminal.

Try a new engine speed (RPM) sensor if the above fault-tracing does not reveal any faults.

Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000 Connecting The Breakout Box. EMS 2000
- To replace the engine speed (RPM) sensor, see Replacing engine speed (RPM) sensor Service and Repair.





Select Continue.

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 wiring

FAULT FOUND - DONE

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