AutoCodes – Ford – P0188 1999 Ford F150

P0188 1999 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit High Input

Quick Answer

The comprehensive component monitor (CCM) monitors the Engine Fuel Temperature (EFT) Sensor circuit to the Powertrain Control Module (PCM) for low and high voltage. Common causes include Faulty Engine Fuel Temperature Sensor, Engine Fuel Temperature Sensor harness is open or shorted, Engine Fuel Temperature Sensor 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: P0188 1999 Ford F150 indicates Engine Fuel Temperature Sensor B Circuit High Input.
Common causes: Common causes include Faulty Engine Fuel Temperature Sensor, Engine Fuel Temperature Sensor harness is open or shorted, Engine Fuel Temperature Sensor 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 1,943

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0188 1999 Ford F150 Description

The comprehensive component monitor (CCM) monitors the Engine Fuel Temperature (EFT) Sensor circuit to the Powertrain Control Module (PCM) for low and high voltage. If voltage were to fall below or exceed a calibrated limit and amount of time during testing, the test will fail. Open or short in harness. Low ambient temperature operation.

OBDII Code P0188 1999 Ford F150 - Engine Fuel Temperature Sensor B Circuit High Input - AutoCodes.com — P0188 1999 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0188 1999 Ford F150?

Faulty Engine Fuel Temperature Sensor
Engine Fuel Temperature Sensor harness is open or shorted
Engine Fuel Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0188 1999 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 EFT sensor circuit to the PCM for high voltage. If voltage were to exceed a calibrated limit and a calibrated amount of time during testing, the test will fail.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0188 1999 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 P0188 1999 Ford F150 code?

Need more information on how to fix the P0188 1999 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the 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 P0188 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P0188 in a 1999 Ford F150?

- Common symptoms include poor fuel efficiency, rough idling, stalling, and possibly an illuminated check engine light.

2. What does the OBDII code P0188 in a 1999 Ford F150 indicate?

- This code indicates a high input in the fuel temperature sensor B circuit of the engine.

3. What are the possible causes of OBDII code P0188 in a 1999 Ford F150?

- Possible causes include a faulty fuel temperature sensor, damaged wiring or connectors, or issues with the engine control module.

4. How can I diagnose the issue causing OBDII code P0188 in my 1999 Ford F150?

- Diagnose the issue by inspecting the fuel temperature sensor, checking the wiring and connectors for damage, and using a diagnostic scanner to read live data.

5. Can I still drive my 1999 Ford F150 with OBDII code P0188?

- It is not recommended to drive the vehicle with this code, as it can lead to poor engine performance and potential damage if left unresolved.

6. How can I repair OBDII code P0188 in my 1999 Ford F150?

- Repair the code by replacing the faulty fuel temperature sensor, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.

7. Will resetting the check engine light fix OBDII code P0188 in my 1999 Ford F150?

- Resetting the check engine light may temporarily turn it off, but the underlying issue causing the code will still need to be addressed to prevent it from reoccurring.

8. Are there any DIY tips for resolving OBDII code P0188 in a 1999 Ford F150?

- DIY tips include checking for loose or damaged wiring, ensuring proper sensor installation, and following a repair manual for guidance.

9. How much does it typically cost to repair OBDII code P0188 in a 1999 Ford F150?

- The cost of repairs can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

10. Can OBDII code P0188 in a 1999 Ford F150 cause any long-term damage if not fixed promptly?

- If left unresolved, this code can potentially lead to reduced engine performance, lower fuel efficiency, and possibly more severe engine issues over time.