Fault Code P0542
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0542
Intake Air Heater 'A' Circuit High
Code P0542 indicates a high voltage or continuous short circuit in the intake air heater 'A' circuit. High voltage can cause the heater to operate constantly or burn out.
Part Details
Part Name
Intake Air Heater Circuit
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪900
Engine Location
Wiring/Component
Symptoms
- Difficulty starting the engine (due to overheating)
- Burning smell from the engine compartment
- Smoke emitting from the engine
- Check Engine Light on
Possible Causes
- 1Short circuit to constant voltage wiring
- 2Relay stuck in the 'on' position
- 3Incorrect electrical connections
- 4Internal fault in the intake air heater
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