Checking the voltage supply
Symptom: Seat cannot be operated.
Checking the voltage supply |
Fault symptom:
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Seat cannot be operated.
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Diagnostic procedure:
1. |
Check that fuse 16 is intact.
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2. |
Unplug the 8-pin connector under the seat and measure the voltage across pin 6 and chassis ground. It should be 12 V. If it is not, check the wiring between pin 6 of the connector and fuse 16.
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3. |
Measure the voltage across pins 6 and 8. It should be 12 V.
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4. |
Measure the voltage across pins 6 and 7 in the connector. It should be about 12 V when a door is open or the ignition switched on, and 0 V when all doors are closed and the ignition is switched off. If different readings are obtained, check the wiring between pin 7 and ICE terminal 32 for continuity/shorting.
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6. |
Connect a jumper lead across pins 30 and 87 of the relay holder. If the seat can now be operated, change the relay.
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7. |
Check the wiring between pin 87 of the relay and the control module.
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8. |
Turn to page 852-55, "Before control module replacement".
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