Info

Fault, Fault code

Possible causes, elimination, notes

Connect ohmmeter to connector A 12 and drive motor connector pin 3. Connect ohmmeter to connector D 10 and drive motor connector pin 4. Connect ohmmeter to connector D 2 and drive motor connector pin 5.

5. Check wire from connector C 8 to drive motor pin 1 for short to B+

6. Check wire from connector B 8 to drive motor pin 2 for short to B+

7. Check wire from connector A 12 to drive motor pin 3 for short to B+.

8. Check wire from connector D 10 to drive motor pin 4 for short to B+

9. Check wire from connector D 2 to drive motor pin 5 for short to B+

Test point 8

Motor of central

Signal implausible Fault code 27

Diagnosis conditions

No control module fault stored. No fault with supply voltage (5 volts).

Signal implausible

1. Check central valve for smooth operation.

2. Unplug connectors A, B, C and D from the heating/air-conditioning

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