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
Lighting Systems DTCS
LIGHTING SYSTEMS DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1950 | Control Module Programming Error |
| DTC B1951 | Ignition Power Supply Voltage Data Malfunction |
| DTC B1952 | Windshield Washer Motor Supply Voltage Circuit |
| DTC B1955 | Front Height Sensor Error |
| DTC B1956 | Rear Height Sensor Error |
| DTC B1967 | Lack of Height Sensor Initial Setting |
| DTC B1970 | Wheel Speed Sensor and/or Its Circuit Malfunction |
| DTC U0073 | Control Module Communication Bus Off |
| DTC U0100 | Lost Communication With ECM |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.