Engine-Codes - Generic - P1432

P1432 - Thermostat Heater Control Circuit Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1432 Possible Causes

  • Faulty Thermostat Heater
  • Thermostat Heater harness is open or shorted
  • Thermostat Heater circuit poor electrical connection

How is the P1432 code repair?

Start by checking 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's pins.

What is the cost to diagnose the P1432 code

Labor: 1.0

The cost to diagnose the P1432 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the code detected?

The Powertrain Control Module (PCM) monitored the thermostat heater control circuit and detected a high or low voltage condition

Possible Symptoms

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

P1432 Meaning

Thermostat Heater Control (THTRC) Circuit Failure. The Comprehensive Component Monitor (CCM) monitors the THTRC circuit to the Powertrain Control Module (PCM) for high and low voltage.

More Information

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Information for specific makes

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