Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
READ TROUBLE CODES Mode
This function allows the user to read and erase trouble codes. A trouble code counter will appear along with trouble code displayed on DRB. For example, DRB will display 1 OF 4 TROUBLE CODES. PCM will store up to 8 trouble codes. Trouble codes are numbered in reverse order of their setting. The most recent trouble code to occur will be number one. Vehicles without A/C will always have A/C CLUTCH RELAY CKT (circuit) stored in memory. This trouble code will always be number one if vehicle is not equipped with A/C. If no trouble codes are stored, DRB will display NO TROUBLE CODES DETECTED and start counter will show 0 STARTS SINCE ERS.
A start counter will appear below DRB trouble code counter display. Start counter counts number of times vehicle has started since trouble code(s) was set, erased or battery was disconnected. This helps determine if failure is intermittent. Memory space limits start counter to first 3 trouble codes. Start counter of zero equals a hard trouble code. Start counter number more than one indicates an intermittent trouble code. Start counter will count up to 255 starts. If no trouble codes are stored, DRB will display NO TROUBLE CODES DETECTED and start counter will show 0 STARTS SINCE ERS.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.