Battery Voltage Below Or Above Threshold
Table of contents
C2129 JEEP Possible Causes
- Battery Voltage
- Charging system
- Check for other OBDII codes.
How do I fix code C2129 JEEP?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- C2129-16-BATTERY VOLTAGE – CIRCUIT VOLTAGE BELOW THRESHOLD [ ACTIVE CRUISE CONTROL (ACC) MODULE – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-16-BATTERY VOLTAGE – CIRCUIT VOLTAGE BELOW THRESHOLD [ AIR SUSPENSION CONTROL MODULE (ASCM) – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-16-BATTERY VOLTAGE – CIRCUIT VOLTAGE BELOW THRESHOLD [ DRIVETRAIN CONTROL MODULE (DTCM) – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-16-BATTERY VOLTAGE – CIRCUIT VOLTAGE BELOW THRESHOLD [ ELECTRONIC LIMITED SLIP DIFFERENTIAL (ELSD) MODULE – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-16-BATTERY VOLTAGE – CIRCUIT VOLTAGE BELOW THRESHOLD
- C2129-17-BATTERY VOLTAGE – CIRCUIT VOLTAGE ABOVE THRESHOLD [ ACTIVE CRUISE CONTROL (ACC) MODULE – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-17-BATTERY VOLTAGE – CIRCUIT VOLTAGE ABOVE THRESHOLD [ AIR SUSPENSION CONTROL MODULE (ASCM) – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-17-BATTERY VOLTAGE – CIRCUIT VOLTAGE ABOVE THRESHOLD [ DRIVETRAIN CONTROL MODULE (DTCM) – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-17-BATTERY VOLTAGE – CIRCUIT VOLTAGE ABOVE THRESHOLD [ ELECTRONIC LIMITED SLIP DIFFERENTIAL (ELSD) MODULE – ELECTRICAL DIAGNOSTICS: DTC TROUBLESHOOTING ]
- C2129-17-BATTERY VOLTAGE – CIRCUIT VOLTAGE ABOVE THRESHOLD
Cost of diagnosing the C2129 JEEP code
The cost of diagnosing the C2129 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C2129 JEEP Description
The Battery Voltage to various control modules is monitored. The OBDII code is set when the Battery Voltage is below or above threshold expected.