Engine-Codes - Isuzu - P1546 Isuzu

P1546 Isuzu Code - Air Conditioning Clutch Feedback Circuit Low Voltage

- Code Popularity: 2,229 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1546 Isuzu?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty A/C Clutch Relay
  • A/C Clutch Relay harness is open or shorted
  • A/C Clutch Relay circuit poor electrical connection
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How to Fix the DTC P1546 Isuzu?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1546 Isuzu code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1546 Isuzu Code Mean?

The Powertrain Control Module (PCM) will activate the A/C clutch relay when the PCM detects that A/C has been requested. When the PCM activates the relay, voltage should be present at both the A/C compressor clutch and the A/C clutch status circuit at the PCM.

P1546 Isuzu Code - Air Conditioning Clutch Feedback Circuit Low Voltage

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