P103D Code - Engine Coolant Pump Control Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Coolant Pump Control Module, Engine Coolant Pump Control Module harness is open or shorted, Engine Coolant Pump Control Module 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
- P103D indicates Engine Coolant Pump Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Engine Coolant Pump Control Module, Engine Coolant Pump Control Module harness is open or shorted, Engine Coolant Pump Control Module 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.
Code P103D Description
What are the Possible Causes of the DTC P103D?
- Faulty Engine Coolant Pump Control Module
- Engine Coolant Pump Control Module harness is open or shorted
- Engine Coolant Pump Control Module circuit poor electrical connection
How to Fix the DTC P103D?
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 P103D 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.
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Information for Specific Makes
- P103D Buick — Engine Coolant Pump Control Signal Message Counter Incorrect
- P103D Cadillac — Engine Coolant Pump Control Signal Message Counter Incorrect
- P103D Chevrolet — Engine Coolant Pump Control Signal Message Counter Incorrect
- P103D Chrysler — Cylinder 3 Oil Supply Solenoid Valve Driver Short To Ground
- P103D Dodge — Cylinder 3 Oil Supply Solenoid Valve Driver Short To Ground
- P103D Fiat — Cylinder 3 Oil Supply Solenoid Valve Driver Short To Ground
- P103D GMC — Engine Coolant Pump Control Signal Message Counter Incorrect
- P103D Jeep — Cylinder 3 Oil Supply Solenoid Valve Driver Short To Ground
Frequently Asked Questions about P103D Code
1. What are the common symptoms of OBDII code P103D?
The common symptoms of code P103D include engine overheating, poor heater performance, and potential illumination of the Check Engine light.
2. What can cause the OBDII code P103D to appear?
The code P103D typically appears due to issues with the engine coolant pump control signal message counter. This can be caused by a faulty coolant pump, wiring problems, or a malfunctioning control module.
3. How can I diagnose the OBDII code P103D?
Diagnosing code P103D involves using a diagnostic scanner to retrieve the code, checking the coolant pump and related components for any visible damage, and testing the wiring and connections for continuity.
4. Can a faulty temperature sensor trigger code P103D?
Yes, a faulty temperature sensor can potentially trigger code P103D if it leads to incorrect coolant temperature readings, which may affect the coolant pump control signal message counter.
5. What are some repair tips for OBDII code P103D?
Repairing code P103D may involve replacing the coolant pump, repairing any damaged wiring or connections, resetting the control module, and clearing the trouble codes with a diagnostic scanner.
6. Is it safe to continue driving with OBDII code P103D present?
It is not recommended to continue driving with code P103D present, as it can lead to engine overheating and potential damage if the coolant pump is not functioning properly.
7. Can a DIY enthusiast fix OBDII code P103D at home?
Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair code P103D at home, especially if the issue is related to wiring or connections.
8. How much does it typically cost to repair OBDII code P103D at a mechanic?
The cost of repairing code P103D at a mechanic can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more, including parts and labor.
9. Will resetting the trouble codes make OBDII code P103D disappear permanently?
Resetting the trouble codes may temporarily clear code P103D, but if the underlying issue causing the code is not fixed, it is likely to reappear once the vehicle is driven again.
10. Can a low coolant level trigger OBDII code P103D?
Yes, a low coolant level can potentially trigger code P103D by affecting the proper functioning of the coolant pump and leading to incorrect coolant temperature readings.
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