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P2100-ELECTRONIC THROTTLE CONTROL MOTOR CIRCUIT (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes THROTTLE PLATE / BORE INSPECTION (K447) ETC POSITIVE CIRCUIT SHORTED TO BATTERY VOLTAGE (K448) ETC NEGATIVE CIRCUIT SHORTED TO BATTERY VOLTAGE (K447) ETC POSITIVE CIRCUIT SHORTED TO THE (K448) ETC NEGATIVE CIRCUIT (K447) ETC POSITIVE CIRCUIT OPEN (K447) ETC POSITIVE CIRCUIT SHORTED TO GROUND (K448) ETC NEGATIVE CIRCUIT OPEN (K448) ETC NEGATIVE CIRCUIT SHORTED TO GROUND LOW BATTERY VOLTAGE ETC MOTOR/THROTTLE BODY PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC Ignition on, engine not running. NOTE: If the P2100 is intermittent, it is possible that the controller is overheating in extreme hot tempera- NOTE: Low battery voltage can also cause excessive current draw, in very hot and very cold ambient tem- Look closely at the temperatures at which this DTC set. Is the DTC active at this time? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 838 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |