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Diagnostic Trouble Codes Troubleshooting

DTC TROUBLESHOOTING

Step Action Yes No
1 Was "Engine and Emission Control System Check" performed?  Go To Step 2. Go to "ENGINE AND EMISSION CONTROL SYSTEM CHECK :".
2
  1. Check for voltage at terminal "C46-27" of ECM connector connected, under the following condition. Engine starter signal specification After starting engine: 0-1 V 
Is voltage as specified? 		 Faulty starting motor.
If starting motor is OK, substitute a known-good ECM and recheck.		 "BLK/YEL" circuit shorted to other circuit.
If "BLK/YEL" circuit is OK, substitute a known-good ECM and recheck.
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