P1188 Honda Code - Fuel Tank Temperature Sensor Circuit High Voltage
Quick Answer
The P1188 code for Honda vehicles indicates a problem with the Fuel Tank Temperature Sensor Circuit, specifically a high voltage issue. Common causes include Faulty fuel tank temperature sensor, Wiring issues in the sensor circuit, ECM malfunction. 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 sensor, Wiring issues in the sensor circuit, ECM malfunction.
- 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 P1188 Honda Description
The P1188 code for Honda vehicles indicates a problem with the Fuel Tank Temperature Sensor Circuit, specifically a high voltage issue. The fuel tank temperature sensor is a crucial component that monitors the temperature of the fuel in the tank. This information is essential for the engine control module (ECM) to accurately calculate the fuel mixture and combustion process. When the sensor detects a high voltage in the circuit, it means that the temperature reading is out of range, which can lead to various performance issues in the vehicle.
Common Causes of P1188 Honda
- Faulty fuel tank temperature sensor
- Wiring issues in the sensor circuit
- ECM malfunction
- Corrosion or damage to sensor connections
- Fuel contamination affecting sensor readings
Symptoms of P1188 Honda
- Decreased fuel efficiency
- Engine misfires or hesitations
- Check Engine Light illuminated
- Rough idling or stalling
- Increased emissions
How to Fix P1188 Honda
- Diagnose the issue by using a scan tool to read the code and identify the specific cause of the high voltage reading.
- Inspect the fuel tank temperature sensor and its wiring for any visible damage or corrosion.
- Test the sensor's resistance and voltage output to determine if it is functioning within the manufacturer's specifications.
- Replace the fuel tank temperature sensor if it is found to be faulty, ensuring proper installation and connection.
- Clear the diagnostic trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1188 Honda
The typical repair costs for addressing a P1188 code in a Honda vehicle can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.
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