DTC No | Condition | Possible Caese |
C1275 | - When vehicle speed is more than10km/h and the brake light switch is off, ‘|G|＞0.5G’ for 20sec continuously. - When ‘ |min. wheel speed| / dt ≥0.2G and |G| ≤0.1G’ for 60sec continuously. | - Open/short in G-sensor circuit. - Faulty G-sensor - Faulty installing of G-sensor - Faulty HECU |
Only the ABS, TCS(ESP) functions are inhibited. The ABS,TCS(ESP) warning lamps are ON, but the EBD warning lamp OFF.
CHECK OPEN/SHORT IN CIRCUIT OF G-SENSOR.
Turn the ignition switch ON.
Measure the output voltage between terminals 2(+) and 3(-) of the G-sensor connector.
Is the voltage within 0.6V ~ 4.5V?
▶ Repair an open or short in the circuit between the G-sensor and the HECU.
▶ Check installing of G-sensor
CHECK INSTALLING OF G-SENSOR
Visually check for the intalling of the G-sensor.
Be sure to install the G-sensor with the arrow mark to be facing forward direction.
Is it installed correctly?
▶ Reinstall the G-sensor and recheck.
▶ Check output voltage in G-sensor connector
CHECK OUTPUT VOLTAGE IN G-SENSOR CONNECTOR.
Turn the ignition switch ON.
Measure the voltage between terminals 2(+) and 3(-) of the G-sensor connector.
Specification : approximately 2.5V
Incline the G-sensor to 90 degrees angle then measure the voltage between terminals 2(+) and 3(-) of the G-sensor connector.
Specification : approximately 3.5V
Is the voltage within the specification?
▶ Replace the G-sensor.
▶ Replace the HECU then recheck.
