Fault-Tracing Information

Fault-tracing

Checking the status




- Start the engine.
- A/C on.
Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list.
Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented".
If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now.

Note! Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.









Continue - Replacing the component

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Replacing the component
The Engine Control Module (ECM) monitors the pressure in the air conditioning (A/C) system.

If the malfunction is intermittent, it has been registered previously but no longer remains. Intermittent malfunctions can be due to disruption when the control module started or can be another type of malfunction that may recur at different instances. If the malfunction is permanent it means that it is active right now. The malfunction is assessed on a case by case basis.
Remedy as necessary.

Other information
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults





Continue - Verification

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Troubleshooting information

Attempt New Test - Replacing the component

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Verification




Verification

Hint: After repairing, it is necessary to check that the malfunction has been fixed.








- Ignition off
- Reconnect the connectors, components, etc.
- Start the engine.
- A/C on.
- Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list.
Check the trouble status for the diagnostic trouble code when the diagnosis is "Implemented". When the function is correct the trouble status should be "No malfunction found" when the diagnosis is implemented.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Troubleshooting information

VERIFIED - FAULT FOUND

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