P1628 Buick Code - Powertrain Control Module Engine Control Temperature Pullup Resistor Conditions
Quick Answer
The P1628 Buick code relates to the Powertrain Control Module (PCM) detecting an issue with the Engine Control Temperature Pullup Resistor. Common causes include Faulty Engine Control Temperature Pullup Resistor, Wiring or connection issues related to the pullup resistor, PCM 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
- P1628 Buick indicates Powertrain Control Module Engine Control Temperature Pullup Resistor Conditions.
- Common causes
- Common causes include Faulty Engine Control Temperature Pullup Resistor, Wiring or connection issues related to the pullup resistor, PCM 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 P1628 Buick Description
The P1628 Buick code relates to the Powertrain Control Module (PCM) detecting an issue with the Engine Control Temperature Pullup Resistor. This component is responsible for providing the PCM with accurate temperature readings from various sensors in the engine. When the PCM detects a problem with the pullup resistor, it can lead to inaccurate temperature readings, which can affect the engine's performance and efficiency.
Common Causes of P1628 Buick
- Faulty Engine Control Temperature Pullup Resistor.
- Wiring or connection issues related to the pullup resistor.
- PCM malfunction.
- Corrosion or damage to the sensor connectors.
- Electrical issues within the engine control system.
Symptoms of P1628 Buick
- Check Engine light illuminated on the dashboard.
- Engine running rough or misfiring.
- Reduced fuel efficiency.
- Engine overheating.
- Difficulty starting the engine.
How to Fix P1628 Buick
- Begin by connecting a diagnostic scanner to the vehicle to retrieve the specific trouble code and confirm that it is indeed P1628 related to the Engine Control Temperature Pullup Resistor.
- Inspect the wiring and connectors related to the pullup resistor for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components.
- Test the Engine Control Temperature Pullup Resistor to determine if it is functioning correctly. Replace the resistor if it is found to be faulty.
- Clear the trouble code from the PCM memory using the diagnostic scanner.
- Test drive the vehicle to ensure that the issue has been resolved and that the Check Engine light no longer illuminates.
Cost to Fix P1628 Buick
The cost of repairing a P1628 Buick code related to the Engine Control Temperature Pullup Resistor can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost of the repair may fall between $150 and $500. However, it is essential to keep in mind that labor rates and part prices can vary based on location, the make and model of the vehicle, and the shop's hourly rates. It is advisable to obtain quotes from multiple repair shops to ensure you are getting a fair price for the repair.
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