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.
2012 Suzuki Grand Vitara BaseFACTORY OEM SERVICE PROCEDURE
Body Electrical Control System DTCS
BODY ELECTRICAL CONTROL SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1133 | Battery voltage too high |
| DTC B1141 | Outside air temperature (ambient temperature) sensor circuit open |
| DTC B1142 | Outside air temperature (ambient temperature) sensor circuit short to ground |
| DTC B1150 | Air bag communication circuit malfunction |
| DTC B1157 | Air bag deployment signal input |
| DTC B1170 | EEPROM access error |
| DTC U0073 | Control module communication bus off |
| DTC U0100 | Lost communication with ECM |
| DTC U0101 | Lost communication with TCM |
| DTC U0144 | Lost communication with keyless start control module |
| DTC U0151 | Lost communication with restraints control module |
| DTC U0155 | Lost communication with instrument panel cluster (IPC) control module |
| DTC U0164 | Lost communication with HVAC control module |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.