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Home >> Dodge and Ram >> 1999 >> Durango 4WD V8-5.2L VIN Y >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> No Start Test >> Checking Idle Air Control Motor
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Checking Idle Air Control Motor

Tests 749 - 754:




Tests 755 - 759:




Tests 760 - 765:




Tests 766 - 769:




Tests 770 - 771:




SYMPTOM
* CHECKING IDLE AIR CONTROL MOTOR

POSSIBLE CAUSES
- IAC motor #1 driver circuit open
- IAC motor #2 driver circuit open
- IAC motor #3 driver circuit open
- IAC motor #4 driver circuit open
- PCM connector terminals (# 1) damaged, pushed out, miswired
- PCM connector terminals (# 2) damaged, pushed out, miswired
- PCM connector terminals (# 3) damaged, pushed out, miswired
- PCM connector terminals (# 4) damaged, pushed out, miswired
- IAC motor defective
- Throttle body restricted
- IAC valve driver ckt # 1 shorted to other circuits
- PCM defective (IAC motor # 1 circuit)
- PCM defective (IAC motor # 2 circuit)
- PCM defective (IAC motor # 3 circuit)
- PCM defective (IAC motor # 4 circuit)
- IAC valve driver circuit # 3 shorted to # 4
- IAC valve driver ckt # 2 shorted to other ckts
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