AutoCodes – Ford – P1432 1997 Ford F150

P1432 1997 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 1997 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 2,077

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 1997 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 1997 Ford F150 - Thermostat Heater Control Circuit Failure - AutoCodes.com — P1432 1997 Ford F150 Code - Thermostat Heater Control Circuit Failure

What does this mean?

What are the Possible Causes of the DTC P1432 1997 Ford F150?

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

How to Fix the DTC P1432 1997 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 1997 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 1997 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 1997 Ford F150 Code

1. What are the common symptoms of OBDII code P1432 on a 1997 Ford F150?

The common symptoms include the engine running hotter than usual, reduced fuel efficiency, and the check engine light being illuminated.

2. What causes the OBDII code P1432 (Thermostat Heater Control Circuit Failure) on a 1997 Ford F150?

This code is usually triggered by a malfunction in the thermostat heater control circuit, which is responsible for regulating the engine temperature.

3. How serious is the OBDII code P1432 on a 1997 Ford F150?

While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential overheating issues and further damage to the engine.

4. Can I continue driving my 1997 Ford F150 with OBDII code P1432?

It is not recommended to continue driving with this code present, as it can lead to engine overheating and other potential issues. It's best to address the problem as soon as possible.

5. How can I diagnose the OBDII code P1432 on my 1997 Ford F150?

Diagnosing this code typically involves checking the thermostat heater control circuit for any faults or shorts, and testing the thermostat itself to ensure proper functionality.

6. Is it possible to repair the OBDII code P1432 on a 1997 Ford F150 myself?

If you have the necessary tools and automotive knowledge, you may be able to repair this code yourself by replacing the faulty thermostat heater control circuit or thermostat.

7. How much does it cost to repair the OBDII code P1432 on a 1997 Ford F150?

The cost of repairing this code can vary depending on the extent of the issue and whether you choose to do the repair yourself or take it to a professional mechanic. It may range from $100 to $300 or more.

8. Can a faulty thermostat cause the OBDII code P1432 on a 1997 Ford F150?

Yes, a faulty thermostat can cause this code to trigger if it is not functioning properly and affecting the thermostat heater control circuit.

9. Are there any preventive measures to avoid OBDII code P1432 on a 1997 Ford F150?

Regular maintenance of the cooling system, including checking the thermostat and its components, can help prevent issues that may lead to this code being triggered.

10. Will resetting the check engine light resolve the OBDII code P1432 on a 1997 Ford F150?

Resetting the check engine light may temporarily turn it off, but it will not fix the underlying issue causing the code. It's important to diagnose and address the root cause of the problem.