Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the TCM. Refer to TM-126, "Wiring Diagram".
ABS branch line circuit
IPDM-E branch line circuitSqueak and rattle trouble diagnoses
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any
customer's comments; refer to DLK-199, " ...
Clip list
Descriptions for Clips
Replace any clips which are damaged during removal or installation.
...
Lighting & turn signal switch
Removal and Installation
NOTE: The lighting and turn signal switch is
integral with the combination switch assembly.
REMOVAL
Unlock steering wheel.
CAUTION:
Before servicing, disconnect both battery terminals and wait
at least three minutes
Do not use air tools or electric tools ...