Signal Too High. Intermittent Fault

Signal too high. Intermittent fault

Checking the connectors and components




- Ignition off.
Check the leak diagnostic pump, system relay and control module connectors. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check that the air flow through the hoses from the upper terminal on the leak diagnostic pump to the intake manifold terminal (1) is unimpeded. Check that there is no leakage between the terminals.

Note! Air can only flow from the leak diagnostic pump to the intake manifold.

Check the function of the non-return valve (2). See the arrow on the non-return valve.
Remedy as necessary.

Other information:
- To connect the breakout box, see Connecting the breakout box. EMS 2000 Connecting The Breakout Box. EMS 2000
- To replace the leak diagnostic pump, see Replacing the leak diagnostic pump Service and Repair.









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 the connectors and components

FAULT FOUND - DONE

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