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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action YES NO
1  Was "Electronic Stability Program Check" performed?  Go to Step 2. Go to ELECTRONIC STABILITY PROGRAM CHECK .
2  Check back up light switch and its circuit 
  1. Turn ignition switch to ON position.
  2. Check back-up lights, back up light switch and their circuit check. Refer to EXTERIOR LIGHTS .

Are they in good condition? 		 Go to Step 3. Repair or replace.
3  Check back up light switch circuit 
  1. Turn ignition switch to OFF position.
  2. Disconnect ESP® control module connector.
  3. Check for proper connection to ESP® control module connector terminal at "E53-10".
  4. If OK, then measure voltage between connector terminal "E53-10" and vehicle body ground.

Is it 0 V? 		 Go to Step 4. "RED" wire circuit is shorted to power circuit.
4  Check back up light switch circuit 
  1. Turn ignition switch to ON position.
  2. Measure voltage between connector terminal "E53-10" and vehicle body ground with the shift lever in "Reverse" position.

Is it 10 - 14 V? 		 Substitute a known-good ESP® hydraulic unit/control module assembly and check DTC. "RED" wire circuit open.
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