AutoCodes – Ford – P1432 2002 Ford F150

P1432 2002 Ford F150 Code - Thermostat Heater Control Circuit Failure

Quick Answer

Thermostat Heater Control (THTRC) Circuit Failure. Common causes include Faulty Thermostat Heater, Thermostat Heater harness is open or shorted, Thermostat Heater circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1432 2002 Ford F150 indicates Thermostat Heater Control Circuit Failure.
Common causes: Common causes include Faulty Thermostat Heater, Thermostat Heater harness is open or shorted, Thermostat Heater circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,028

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1432 2002 Ford F150 Description

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.

OBDII Code P1432 2002 Ford F150 - Thermostat Heater Control Circuit Failure - AutoCodes.com — P1432 2002 Ford F150 Code - Thermostat Heater Control Circuit Failure

What does this mean?

What are the Possible Causes of the DTC P1432 2002 Ford F150?

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

How to Fix the DTC P1432 2002 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The Comprehensive component monitor (CCM) monitors the THTRC circuit to the PCM for high and low voltage. If during testing; voltage was to fall below a calibrated limit for a calibrated amount of time the test will fail and set the DTC and MIL.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1432 2002 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1432 2002 Ford F150 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1432 2002 Ford F150 Code

1. What are the common symptoms of OBDII code P1432 in a 2002 Ford F150?

- Common symptoms include the engine running hotter or colder than normal, decreased fuel efficiency, and potential overheating issues.

2. What does the OBDII code P1432 indicate in a 2002 Ford F150?

- OBDII code P1432 indicates a thermostat heater control circuit failure in the vehicle.

3. What are the possible causes of OBDII code P1432 in a 2002 Ford F150?

- Possible causes include a faulty thermostat, a malfunctioning thermostat heater, damaged wiring or connectors in the thermostat circuit, or a failed engine coolant temperature sensor.

4. How can I diagnose the OBDII code P1432 in my 2002 Ford F150?

- Diagnosis typically involves checking the thermostat operation, inspecting the thermostat heater circuit for continuity, testing the engine coolant temperature sensor, and examining the wiring and connectors for any damage.

5. Can I continue driving my 2002 Ford F150 with OBDII code P1432?

- It is not recommended to drive the vehicle with OBDII code P1432, as it can lead to engine overheating and potential damage. It is best to address the issue promptly.

6. How can I repair OBDII code P1432 in my 2002 Ford F150?

- Repair may involve replacing the thermostat, fixing the thermostat heater circuit, repairing damaged wiring or connectors, or replacing the engine coolant temperature sensor as needed.

7. Will resetting the OBDII code P1432 in my 2002 Ford F150 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the fault again.

8. Are there any DIY tips for fixing OBDII code P1432 in a 2002 Ford F150?

- DIY tips may include checking and cleaning the wiring and connectors, testing components with a multimeter, and following a repair manual specific to your vehicle for guidance.

9. How much does it typically cost to repair OBDII code P1432 in a 2002 Ford F150?

- The cost of repair can vary depending on the root cause of the issue, the parts needed, and whether you choose to do the repair yourself or take it to a professional mechanic.

10. Can OBDII code P1432 in a 2002 Ford F150 cause any long-term damage if left unresolved?

- Leaving OBDII code P1432 unresolved can potentially lead to engine overheating, decreased fuel efficiency, and other related issues that may cause further damage to the vehicle if not addressed in a timely manner.