AutoCodes – Honda – P1188 Honda

P1188 Honda Code - Fuel Tank Temperature Sensor Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) monitors the Fuel Tank Temperature Sensor. Common causes include Faulty Fuel Tank Temperature (FTT) Sensor, Fuel Tank Temperature (FTT) Sensor harness is open or shorted, Fuel Tank Temperature (FTT) 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: P1188 Honda indicates Fuel Tank Temperature Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Tank Temperature (FTT) Sensor, Fuel Tank Temperature (FTT) Sensor harness is open or shorted, Fuel Tank Temperature (FTT) 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,637

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1188 Honda Description

The Engine Control Module (ECM) monitors the Fuel Tank Temperature Sensor. The ECM sets the OBDII code when the Fuel Tank Temperature Sensor is not to factory specifications.

OBDII Code P1188 Honda - Fuel Tank Temperature Sensor Circuit High Voltage - AutoCodes.com — P1188 Honda Code - Fuel Tank Temperature Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1188 Honda?

Faulty Fuel Tank Temperature (FTT) Sensor
Fuel Tank Temperature (FTT) Sensor harness is open or shorted
Fuel Tank Temperature (FTT) Sensor circuit poor electrical connection

How to Fix the DTC P1188 Honda?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1188 Honda 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 P1188 Honda code?

Need more information on how to fix the P1188 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1188 Honda code diagnosed by a professional: Find a repair shop in your area

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.