Lumbar Support Adjuster Assembly

INSPECTION




1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY
a. Inspect lumbar support motor operation.
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, check that the lumbar support moves to release side.




2. Reverse the polarity, check that the lumbar support moves forward.

If operation is not as specified, replace the seat adjuster.




b. Inspect lumbar support motor PTC thermistor operation.
1. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 on the lumbar support motor connector and move the lumbar support to front end position.




2. Continue to apply voltage, check that a circuit breaker operation noise can be heard within 4 to 60 seconds.
3. Reverse the polarity, check that the lumbar support begins to move to release side within approximately 60 seconds.

If operation is not as specified, replace the motor.