Diagnostic procedure
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STEP
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INSPECTION
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ACTION
|
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|---|---|---|---|
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1
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INSPECT TR SWITCH FOR DTCs (ATX)
• Turn ignition key to OFF.
• Connect WDS or equivalent to DLC-2.
• Turn ignition key to ON (engine OFF).
• Is DTC for TR switch obtained?
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Yes
|
Follow inspection procedures for TR switch.
|
|
No
|
Go to step 4.
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|
2
|
INSPECT BACK-UP LIGHT SWITCH (MTX)
• Inspect back-up light switch.
• Is it normal?
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Yes
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Go to next step.
|
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No
|
Replace back-up light switch, then go to next step.
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||
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3
|
INSPECT REVERSE SIGNAL CIRCUIT FOR SHORT TO POWER (MTX)
• Shift select lever to neutral position.
• Turn ignition key to ON.
• Measure voltage between DSC HU/CM terminal Z and ground.
• Is voltage above 10 V?
|
Yes
|
Go to next step.
|
|
No
|
Replace back-up light switch, then go to next step.
Replace reverse signal circuit, then go to next step.
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4
|
VERIFY TROUBLESHOOTING COMPLETED
• Clear DTC from memory.
(See Clearing DTCs Procedures.)
• Is same DTC present?
|
Yes
|
Replace DSC HU/CM, then go to next step.
|
|
No
|
Go to next step.
|
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|
5
|
VERIFY THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC Table.)
|
|
No
|
DTC troubleshooting completed.
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