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Trouble Diagnosis

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Symptom Possible causes Repair order
DVD player inoperative
  1. Power supply
  2. Ground circuit
  3. Audio enable circuit
  4. DVD enable signal
  5. Audio enable signal
  6. DVD player
  7. Audio unit
  1. Refer to "POWER SUPPLY CIRCUIT INSPECTION ".
  2. Refer to "POWER SUPPLY CIRCUIT INSPECTION ".
  3. Check audio enable circuits for open or short between audio unit terminals 39, 40 and DVD player terminals 11, 9.
  4. Push power switch of DVD player and verify approx. 5V is present at terminal 39 of audio unit.
  5. Push power switch of DVD player and verify approx. 5V is present at terminal 9 of DVD player.
  6. Remove DVD player for repair.
  7. Remove audio unit for repair.
No sound when playing DVD
  1. Audio signal circuits
  2. DVD player
  3. Audio unit
  1. Check audio signal circuits for open or short between DVD player terminals 1, 2, 3 and 4 and audio unit terminals 34, 35, 36 and 37.
  2. Remove DVD player for repair.
  3. Remove audio unit for repair.
Video monitor is inoperative/ does not operate properly
  1. Power supply
  2. Video monitor ground circuit
  3. Video circuits
  4. Data signal
  5. Video monitor
  6. DVD player
  1. Operate DVD player and verify battery positive voltage is present at terminal 16 of video monitor. Verify approximately 5 volts is present at terminal 5 of video monitor.
  2. Check video monitor ground circuits between DVD player terminals 19 and 27 and video monitor terminals 6 and 12.
  3. Check video circuits between DVD player terminals 23 and 24 and video monitor terminals 7 and 8.
  4. Check data signal circuit for open or short between DVD player terminal 29 and video monitor terminal 13.
  5. Remove video monitor for repair.
  6. Remove DVD player for repair.
DVD remote control is inoperative/does not operate properly
  1. Data signal
  2. DVD player remote control batteries
  3. DVD player remote control
  4. Video monitor
  1. Check data signal circuit for open or short between DVD player terminal 30 and video monitor terminal 14.
  2. Replace DVD player remote control batteries.
  3. Replace DVD player remote control.
  4. Remove video monitor for repair.
Headphones inoperative
  1. Headphone batteries
  2. Headphones
  1. Replace headphone batteries.
  2. Replace headphones.
Snowy video/poor audio
  1. Harness or connectors
  2. DVD player
  1. Check harness and connectors for open or short.
  2. Check DVD player.
Snowy video (audio OK)
  1. Harness or connectors
  2. DVD player
  1. Check harness and connectors for open or short.
  2. Check DVD player.
No video (audio OK)
  1. Harness or connectors
  2. DVD player
  3. Video monitor
  1. Check harness and connectors for open or short.
  2. Check DVD player.
  3. Check video monitor.
Dim video (audio OK)
  1. Harness or connectors
  2. DVD player
  3. Video monitor
  1. Check harness and connectors for open or short.
  2. Check DVD player.
  3. Check video monitor.
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