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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 HU/CM AND DLC-2 FOR CONTINUITY AND SHORTS
• Perform the DTC inspection.
• Is an error message displayed regarding communication between the ABS HU/CM and the M-MDS?
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Yes
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If a communication error message is displayed even after inspecting according to procedures displayed in the M-MDS, go to Step 4.
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No
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Go to the next step.
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2
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INSPECT FOR DTCs IN ABS HU/CM
• Have DTCs been stored in memory?
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Yes
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Perform the applicable DTC inspection.
(See DTC Table.)
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No
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Go to the next step.
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3
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INSPECT WARNING LIGHT OPERATION
• Turn on the all warning light on instrument cluster using the instrument cluster input/output check code26.
• Does the warning light illuminate?
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Yes
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Replace the ABS HU/CM (open circuit or short to ground in ABS HU/CM).
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No
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Replace the instrument cluster.
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*4 |
INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR CONTINUITY
Disconnect the ABS HU/CM connector.
• Is there continuity between connector terminal Z, Y and DLC-2?
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Yes
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Go to the next step.
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No
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Repair the wiring harness between the ABS HU/CM and DLC-2.
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*5 |
INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR SHORT TO B+
• Is the voltage approx. 12V at connector terminal Z, Y?
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Yes
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Repair the wiring harness between the ABS HU/CM and DLC-2.
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No
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Go to the next step.
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*6 |
INSPECT WIRING HARNESS BETWEEN ABS HU/CM AND DLC-2 FOR SHORT TO GROUND
• Is there continuity between connector terminal Z, Y and ground?
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Yes
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Repair the wiring harness between the ABS HU/CM and DLC-2.
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No
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Replace the ABS HU/CM (communication circuit malfunction in ABS HU/CM).
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