27 Power Steering Pressure Switch System

Diagnostic Chart:

Symptom: Power steering pressure switch system
- The presence or absence of power steering load is input to the PCM. The PCM controls the idle air control motor based on this input.

Probable Cause
- Malfunction of power steering pressure switch.
- Improper connector contact, open circuit or short-circuited harness wire.
- Malfunction of the PCM.