P1628
Powertrain Control Module Engine Control Temperature Pullup Resistor Conditions
P1628 is an OBD-II diagnostic trouble code meaning: Powertrain Control Module Engine Control Temperature Pullup Resistor Conditions. Common causes: pull-up resistor failure, open or short circuit in the circuit. Estimated repair cost: $6–56.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Check Engine Light Illuminates
- Problems starting the engine
- Reduced engine power
Causes
- Pull-up resistor failure
- Open or short circuit in the circuit
- Wiring harness damage
- Engine control module (ECM) malfunction
- Poor contact in connectors
How to Fix
- Check the integrity of the pull-up resistor
- Check the condition of the circuit for open circuit and short circuit
- Inspect the wiring harness for damage
- Check contacts in ECM connectors
- Replace ECM if necessary
Related codes
Error P1628 by Vehicle Brand
FAQ
What does the P1628 code mean?
P1628 is an OBD-II diagnostic trouble code that indicates: Powertrain Control Module Engine Control Temperature Pullup Resistor Conditions
What causes a P1628 error code?
The most common causes of P1628 include: Pull-up resistor failure; Open or short circuit in the circuit; Wiring harness damage; Engine control module (ECM) malfunction.
How do I fix a P1628 diagnostic trouble code?
To fix P1628: Check the integrity of the pull-up resistor. Check the condition of the circuit for open circuit and short circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1628?
Yes, but get it checked soon
How much does it cost to fix P1628?
The estimated repair cost for P1628 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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