| Trailer brake lamp(s) inoperative |
- Bulb failure
- Fuse(s) blown
- Trailer stop lamp circuit short circuit to ground, open circuit, high resistance
- Brake lamp switch fault
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- Check the bulb condition
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer stop lamp circuit for short circuit to ground, open circuit, high resistance
- system, check datalogger signal - Brake Switch (0x0416)
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| Trailer brake lamp(s) dim |
- Incorrect bulb rating
- Trailer stop lamp circuit high resistance
- Brake lamp switch fault
|
- Check the bulb condition and rating
- Refer to the electrical circuit diagrams and test the trailer stop lamp circuit for high resistance
- Using the manufacturer approved diagnostic system, check datalogger signal - Brake Switch (0x0416)
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| Trailer stop lamp(s) stuck on |
- Trailer stop lamp circuit short circuit to power
- Brake lamp switch fault
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- Refer to the electrical circuit diagrams and test the trailer stop lamp circuit for short circuit to power
- Using the manufacturer approved diagnostic system, check datalogger signal - Brake Switch (0x0416)
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| Trailer fog lamp(s) inoperative |
- Bulb failure
- Fuse(s) blown
- Trailer fog lamp circuit short circuit to ground, open circuit, high resistance
|
- Check the bulb condition
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer fog lamp circuit for short circuit to ground, open circuit, high resistance
|
| Trailer fog lamp(s) dim |
- Incorrect bulb rating
- Trailer fog lamp circuit high resistance
|
- Check the bulb condition and rating
- Refer to the electrical circuit diagrams and test the trailer fog lamp circuit for high resistance
|
| Trailer fog lamp(s) stuck on |
- Trailer fog lamp circuit short circuit to power
|
- Refer to the electrical circuit diagrams and test the trailer fog lamp circuit for short circuit to power
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| Trailer tail / license plate lamp(s) inoperative |
- Bulb failure
- Fuse(s) blown
- Trailer tail / license plate lamp circuit short circuit to ground, open circuit, high resistance
|
- Check the bulb condition
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer tail / license plate lamp circuit for short circuit to ground, open circuit, high resistance
|
| Trailer tail / license plate lamp(s) dim |
- Incorrect bulb rating
- Trailer tail / license plate lamp circuit high resistance
|
- Check the bulb condition and rating
- Refer to the electrical circuit diagrams and test the trailer tail / license plate lamp circuit for high resistance
|
| Trailer tail / license plate lamp(s) stuck on |
- Trailer tail / license plate lamp circuit short circuit to power
|
- Refer to the electrical circuit diagrams and test the trailer tail / license plate lamp circuit for short circuit to power
|
| Trailer turn signal lamp(s) inoperative |
- Bulb failure
- Fuse(s) blown
- Trailer turn signal lamp circuit short circuit to ground, open circuit, high resistance
|
- Check the bulb condition
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer turn signal lamp circuit for short circuit to ground, open circuit, high resistance
|
| Trailer turn signal lamp(s) dim |
- Incorrect bulb rating
- Trailer turn signal lamp circuit high resistance
|
- Check the bulb condition and rating
- Refer to the electrical circuit diagrams and test the trailer turn signal lamp circuit for high resistance
|
| Trailer turn signal lamp(s) stuck on |
- Trailer turn signal lamp circuit short circuit to power
|
- Refer to the electrical circuit diagrams and test the trailer turn signal lamp circuit for short circuit to power
|
| Trailer reverse lamp(s) inoperative |
- Bulb failure
- Fuse(s) blown
- Trailer reverse lamp circuit short circuit to ground, open circuit, high resistance
|
- Check the bulb condition
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer reverse lamp circuit for short circuit to ground, open circuit, high resistance
|
| Trailer reverse lamp(s) dim |
- Incorrect bulb rating
- Trailer reverse lamp circuit high resistance
|
- Check the bulb condition and rating
- Refer to the electrical circuit diagrams and test the trailer reverse lamp circuit for high resistance
|
| Trailer reverse lamp(s) stuck on |
- Trailer reverse lamp circuit short circuit to power
- Trailer reverse lamp relay fault
|
- Refer to the electrical circuit diagrams and test the trailer reverse lamp circuit for short circuit to power
- Using the manufacturer approved diagnostic system, check the Central Junction Box (CJB) for related DTCs and refer to the relevant DTC index
|
| Warning lamp(s) inoperative |
- Fuse(s) blown
- Instrument cluster fault
|
- Check the fuse condition
- Using the manufacturer approved diagnostic system, check the Instrument Cluster (IC) for related DTCs and refer to the relevant DTC index
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| Trailer battery power inoperative |
- Fuse(s) blown
- Trailer battery power circuit short circuit to ground, open circuit, high resistance
|
- Check the fuse condition
- Refer to the electrical circuit diagrams and test the trailer battery power circuit for short circuit to ground, open circuit, high resistance
|
| Trailer ignition power inoperative |
- Fuse(s) blown
- Trailer ignition power circuit short circuit to ground, open circuit, high resistance
|
- Check the fuse condition
- the trailer ignition power circuit for short circuit to ground, open circuit, high resistance
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