Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
7Original wording in English
ALLISON
Servicing tip for vehicles with DTC P0602
ALLISON
Servicing tip for vehicles with DTC P0602
CHEVROLET, GMC
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN ABOUT VEHICLES WITH DIAGNOSTIC TROUBLE CODE P0602 SET IN THE CHASSIS CONTROL MODULE. TECHNICIAN WILL REMOVE FUSE 19 (F19UA) FROM THE UNDER HOOD FUSE BLOCK AND DISCARD. ON SOME VEHICLES WHEN AN AFTERMARKET OR GM ACCESSORY TRAILER BRAKE CONTROLLER IS INSTALLED, IT …
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB, SATURN
This informational bulletin communicates Information to technicians on control module Diagnostic Trouble Code(s) (DTC)(s) P0601, P0602, P0603, P0604, P0606, P062F, P06F3, P1621 which can be shared in multiple modules.
Check vehicle applicability
430A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Allison | 1000 SERIES TRANSMISSION ↗ | Year unknown |
| Allison | 2000 SERIES TRANSMISSION ↗ | Year unknown |
| Allison | 3000 SERIES TRANSMISSION ↗ | Year unknown |
| Allison | 4000 SERIES TRANSMISSION ↗ | Year unknown |
| Buick | ENCLAVE ↗ | 2015 |
| Buick | ENCLAVE ↗ | 2014 |
| Buick | ENCLAVE ↗ | 2013 |
| Buick | ENCLAVE ↗ | 2012 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Control Module Programming Error
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.