1, 2 and 3 Digit Codes: 138

Scan Tool 138 (MIL 25):

Trouble Code Number
- Scan tool 138
- General scan tool P1294
- MIL 25

Fault Message
- Target Idle Not Reached

Range of Check
- Engine: Idle
- Vehicle at rest and the brake applied

Set Condition
- Idle speed differs from target idle by 200 r/min for 12 seconds.

Probable Cause
- Idle Air Control (IAC) motor failed
- IAC (AIS) motor related circuit failed