P1190 – OBD-II DTC

OBD-II DTC P1190 – FTS High – Fuel Pump Temperature Sensor High

DTC P1190 meaning

DTC P1190 refers to a diagnostic trouble code indicating a high reading from the Fuel Pump Temperature Sensor (FTS). This sensor monitors the temperature of the fuel pump to ensure it operates within safe limits. A high signal from this sensor suggests that the fuel pump may be overheating, which can lead to performance issues or potential failure.

DTC P1190 symptoms

Common symptoms associated with DTC P1190 may include:

• Engine performance issues, such as stalling or hesitation
• Difficulty starting the engine
• Reduced fuel efficiency
• Check Engine Light illuminated on the dashboard
• Unusual noises from the fuel pump

DTC P1190 causes

Several factors can trigger DTC P1190, including:

• Faulty fuel pump temperature sensor
• Wiring issues, such as shorts or open circuits in the sensor circuit
• Overheating of the fuel pump due to lack of fuel flow or contamination
• Faulty fuel pump
• Issues with the engine control module (ECM) or software glitches

DTC P1190 seriousness

DTC P1190 is considered a serious issue as it indicates potential overheating of the fuel pump. If left unaddressed, this can lead to:

• Fuel pump failure
• Engine stalling or failure to start
• Increased repair costs due to further damage

It is advisable to diagnose and repair this issue promptly to avoid more severe problems.

How to diagnose DTC P1190

To diagnose DTC P1190, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC P1190.
2. Inspect the fuel pump temperature sensor and its wiring for any visible damage.
3. Check the fuel pump operation and ensure it is functioning correctly.
4. Test the fuel pump temperature sensor with a multimeter to verify its readings.
5. Examine the engine control module (ECM) for any software updates or faults.

How to fix DTC P1190 step-by-step instructions

To fix DTC P1190, follow these steps:

1. Disconnect the battery to ensure safety while working on the vehicle.
2. Inspect and repair any damaged wiring or connectors related to the fuel pump temperature sensor.
3. If the sensor is faulty, replace it with a new one.
4. Check the fuel pump for proper operation and replace it if necessary.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and the check engine light does not reappear.

How to erase DTC P1190

To erase DTC P1190, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the engine to verify that the check engine light is off.

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