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2015 VOLVO XC60
3.2L I6•AWD•AUTOMATIC•gas•B6324S
1 active safety recall on this vehicle — view recalls
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Repairs0Labor492Torque2166Fluid9DTC1822Battery1Maintenance0Recalls1
P0542low severityPowertrain

Intake Air Heater Circuit High

on 2015 Volvo XC60 3.2L I6 · AWD

What this code means

The PCM detected a high voltage condition in the intake air heater circuit. The heater is used to warm intake air for better cold starting on diesel engines.

Symptoms

  • Hard cold starting
  • Extended crank time
  • Check engine light on

Common causes

  • Open in heater circuit wiring
  • Faulty intake air heater relay
  • Corroded or loose connector
  • Failed heater element

Diagnostic steps

  1. Inspect heater wiring for opens
  2. Check relay and connector integrity
  3. Measure heater element resistance
  4. Verify PCM control and voltage supply
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