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STEP
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INSPECTION
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ACTION
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1
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INSPECT WIRING HARNESS BETWEEN ABS/TCS HU/CM AND DLC-2 FOR CONTINUITY AND SHORTS
• Activate TRAC_OFF (TCS OFF light) using WDS or equivalent.
• Is error message displayed regarding communication between ABS/TCS HU/CM and WDS or equivalent?
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Yes
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If a communication error message is displayed even after inspecting according to procedures displayed on the WDS or equivalent, go to Step 6.
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No
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Go to next step.
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2
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INSPECT OFF LIGHT BULB FOR MALFUNCTIONS BY USING INSPECTION FUNCTION IN ABS/TCS HU/CM
• Activate TRAC_OFF (TCS OFF light) using WDS or equivalent.
• Does TCS OFF light illuminate?
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Yes
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Replace ABS/TCS HU/CM (OFF light bulb malfunction inspection control incorrect in ABS/TCS HU/CM).
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No
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Go to next step.
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3
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INSPECT TCS INDICATOR LIGHT BULB
• Remove instrument cluster.
• Inspect TCS OFF light bulb.
• Is it okay?
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Yes
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Go to next step.
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No
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Replace TCS OFF light bulb.
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*4
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INSPECT TCS OFF LIGHT CIRCUIT IN INSTRUMENT CLUSTER
• Connect instrument cluster (16-pin) Terminal 1C to ground and correct all instrument cluster connections.
• Does TCS OFF light illuminate with ignition switch ON?
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Yes
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Undo short and connect all instrument cluster connectors, go to next step.
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No
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Replace instrument cluster (open circuit in instrument cluster).
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*5
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VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN ABS/TCS HU/CM AND INSTRUMENT CLUSTER FOR CONTINUITY) OR ABS/TCS HU/CM
• Disconnect ABS/TCS HU/CM. Connect SST (adapter harness) (vehicle harness side only).
• Use the SST (adapter harness) connector to ground TCS indicator light Terminal O to body ground.
• Does TCS OFF light illuminate with ignition switch ON?
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Yes
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Replace ABS/TCS HU/CM (open circuit in ABS/TCS HU/CM).
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No
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Repair wiring harness between ABS/TCS HU/CM (Terminal O) and instrument cluster.
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*6
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INSPECT WIRING HARNESS BETWEEN ABS/TCS HU/CM AND DLC (DATA LINK CONNECTION) FOR CONTINUITY
• Is there continuity between SST (adapter harness) connector Terminal T and DLC-2.
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Yes
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Go to next step.
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No
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Repair wiring harness between ABS/TCS HU/CM (Terminal T) and DLC-2.
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*7
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INSPECT WIRING HARNESS BETWEEN ABS/TCS HU/CM AND DLC-2 FOR SHORT TO B+
• Is voltage approximately 12 V at SST (adapter harness) connect Terminal T?
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Yes
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Repair wiring harness between ABS/TCS HU/CM (Terminal T) and DLC-2.
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No
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Go to next step.
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*8
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INSPECT WIRING HARNESS BETWEEN ABS/TCS HU/CM AND DLC-2 FOR SHORT TO GROUND
• Is there continuity between SST (adapter harness) connector Terminal T and ground?
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Yes
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Repair wiring harness between ABS/TCS HU/CM (Terminal T) and DLC-2.
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No
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Replace ABS/TCS HU/CM (communication circuit malfunction in ABS/TCS HU/CM).
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