DTC P1294: Target Idle Not Reached: Testing
- Turn ignition on. Using scan tool, read DTCs. If GOOD TRIP is displayed and equal to zero, go to next step. If GOOD TRIP is not displayed and equal to zero, go to step 6 .
- Turn ignition off. Remove IAC motor. Inspect IAC motor and passages for obstructions or damage. If a problem is found, repair as necessary. If no problems are found, install IAC motor and go to next step.
- Start engine. Check vacuum hoses for leaks. Also, check engine for internal vacuum leaks. If a leak is found, repair as necessary. If no leaks are found, go to next step.
- Inspect air induction system for restrictions or leaks. If a problem is found, repair as necessary. If no problems are found, go to next step.
- Inspect throttle plate for carbon build-up or other restrictions. Inspect throttle linkage for binding. Ensure throttle plate is touching throttle stop at idle. If no problems are found, go to next step. If any problems are found, repair as necessary.
- Conditions that set DTC are not present at this time. Perform the following to help identify intermittent condition:
- With engine running at normal operating temperature, wiggle related wiring harness while monitoring related parameters on scan tool. If voltage changes or DTC sets while wiggling wiring harness, repair connectors or wiring harness where wiggling caused voltage to change or DTC to set.
- Review freeze frame information on scan tool. Duplicate conditions present when DTC was set.
- Refer to any Technical Service Bulletins (TSBs) that may apply.
- Visually inspect related wiring harness. Check for chafed, pierced, pinched or partially broken wires.
- Visually inspect related wiring harness connectors. Check for broken, bent, pushed out or corroded terminals.
If a problem is found, repair as necessary. If no problems are found, test is complete.