Inspection Procedure

1. Remove the ABS-IG fuse from the driver side J/B.
2. Check the continuity of the ABS-IG fuse.

   Standard: Continuity 

Fig 1: Inspecting Fuse (ABS-IG)
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NG: INSPECT FOR SHORT IN ALL COMPONENTS CONNECTED TO FUSE AND REPAIR OR REPLACE THEM IF NEEDED, AND REPLACE FUSE 

OK: Go to next step. 

1. Remove the power steering ECU assy with the connector still connected.
2. Turn the ignition switch to the ON position.
3. Measure the voltage according to the value(s) in POWER STEERING ECU ASSY  .

Standard: 

Fig 2: Inspecting Power Steering ECU Assy

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NG: Go to step 3 

OK: REPLACE POWER STEERING ECU ASSY (See step 8 in  REPLACEMENT  ) 

1. Disconnect the connector from the driver side J/B.
2. Disconnect the connector from the power steering ECU assy.
3. Measure the resistance according to the value(s) in POWER STEERING ECU ASSY - DRIVER SIDE J/B  .

Standard: 

Fig 3: Checking Harness And Connector (Power Steering ECU Assy - Driver Side J/B)

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step. 

1. Measure the resistance according to the value(s) in POWER STEERING ECU ASSY - BODY GROUND  .

Standard: 

Fig 4: Checking Harness And Connector (Power Steering ECU Assy - Body Ground)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE