Signal Too Low

Signal too low

Checking the status




- Ignition on.
Activate air conditioning (A/C) relay.
Check that the air conditioning (A/C) relay clicks when activated. The fault is permanent if the relay does not click when activated. The fault is intermittent if the relay clicks.





Continue - Checking the components and wiring

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Checking the components and wiring
Check the fuse for the air conditioning (A/C) relay.
Check the signal cable between engine control module (ECM) terminal #B10 (#C10) and air conditioning (A/C) relay connector terminal #2. Check for a short-circuit to ground. Check for an open-circuit.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Engine Control Module (ECM)
- For further information about the fuses and relays, see the Wiring Diagram
- 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.
- Ignition on.
Activate air conditioning (A/C) relay.
Check that the air conditioning (A/C) relay clicks when activated.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the status

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