Transmission Range Control Module System Voltage Low
The range control module reports its supply voltage below the operating threshold — vehicle battery low, charging system underperforming, or supply line resistance excessive. The module may stop responding until voltage recovers.
Affected components
- Range control module
- Vehicle battery
Common causes
- High likelihood: Weak vehicle battery
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.