Scantool Diagnostics

Tire Pressure Monitoring System

C1126 TPMS ECU Battery Voltage Low - Scantool Diagnostics

Monitor Scantool Data

1. Start engine and turn headlight and rear defroster on.
2. Connect 'TPMS exciter' or scantool to Data Link Connector (DLC).
3. Select "TPMS DIAGNOSIS" mode.
4. Select the "INPUT VALUES" mode of "CURRENT DATA" function.
5. Maintaining ENG. RPM at 2,500 RPM (idle) over 2 minutes.
6. Monitor the parameter of 'BATTERY VOLTAGE' on the 'TPMS exciter' or scantool.

Specification : 'BATTERY VOLTAGE' is more than 10 V

7. Is parameter within specifications?