P102D Cadillac Code - Glow Plug Control Module Temperature Sensor 2 Not Plausible
Quick Answer
The Glow Plug Control Module has the ability to perform internal temperature diagnostics for the microprocessor and the glow plug drivers. Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug 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
- P102D Cadillac indicates Glow Plug Control Module Temperature Sensor 2 Not Plausible.
- Common causes
- Common causes include Faulty Glow Plug Control Module, Glow Plug Control Module harness is open or shorted, Glow Plug 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 P102D Cadillac Description
What are the Possible Causes of the DTC P102D Cadillac?
- Faulty Glow Plug Control Module
- Glow Plug Control Module harness is open or shorted
- Glow Plug Control Module circuit poor electrical connection
How to Fix the DTC P102D Cadillac?
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 P102D Cadillac 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.
Need more information about the P102D Cadillac code?
Need more information on how to fix the P102D Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P102D Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P102D Cadillac Code
1. What does the OBDII code P102D mean on a Cadillac?
The code P102D indicates an issue with the Glow Plug Control Module Temperature Sensor 2, where its readings are not plausible or outside the expected range.
2. What are the common symptoms of a P102D code?
Common symptoms include difficulty starting the engine, reduced engine performance, poor fuel efficiency, and potentially an illuminated check engine light.
3. What causes the P102D code to appear?
This code can be caused by a faulty temperature sensor, wiring issues such as damaged or corroded connections, or a malfunctioning glow plug control module.
4. Can I drive my Cadillac with a P102D code?
While the vehicle may still run, driving with this code can lead to poor performance and potential engine damage if the underlying issue is not resolved.
5. How do I diagnose the P102D code?
Diagnose the code by using an OBDII scanner to confirm the fault, visually inspecting the temperature sensor and wiring, and testing the sensor’s resistance and output.
6. How can I fix the P102D code?
Fixes may include replacing the faulty temperature sensor, repairing damaged wiring or connectors, or replacing the glow plug control module if it’s defective.
7. How much does it cost to repair a P102D code?
Repair costs vary but typically range from $100 to $300, depending on whether the sensor, wiring, or module needs replacement.
8. Can a bad glow plug cause the P102D code?
No, this code is specific to the temperature sensor in the glow plug control module, not the glow plugs themselves.
9. Does the P102D code affect emissions?
Yes, it can impact emissions because faulty sensor readings may lead to improper fuel combustion and increased exhaust pollutants.
10. How can I prevent the P102D code from recurring?
Regular maintenance, prompt repair of wiring issues, and using quality replacement parts can help prevent this code from reappearing.
Discuss the causes and fixes for P102D Cadillac OBDII Code
Code P102D Cadillac comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
