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(P0221) IDLE SPEED PERFORMANCE (CONTINUED) 5. THROTTLE BODY OPERATION Turn the ignition off. Inspect the throttle body plate for carbon build up or other restrictions. Verify that the Accelerator Pedal and APPS are not binding. WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT Were any problems found? Yes >> Repair or replace as necessary. Perform POWERTRAIN VERIFICATION TEST - VER 2. No >> Go To 6 6. PCM Note: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- Perform POWERTRAIN VERIFICATION TEST - VER 2. 7. INTERMITTENT WIRING AND CONNECTORS The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible Note: Check connectors — Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using Note: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes >> Repair as necessary. Perform POWERTRAIN VERIFICATION TEST - VER 2. No >> The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition. ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 313 |