C1252 BUICK, CHEVROLET, CADILLAC, GMC, PONTIAC, SATURN: LEFT FRONT NORMAL POWER MALFUNCTION
POST UPDATED IN June, 2023
C1252 BUICK, CHEVROLET, CADILLAC, GMC, PONTIAC, SATURN: LEFT FRONT NORMAL POWER MALFUNCTION
The CVRSS Module (Continuously Variable Road Sensing Suspension) estimates the road surface and then sends that data to the EBCM (Electronic Brake Control Module). The CVRSS Module provides a Pulse Width Modulation (PWM) signal to the EBCM via the left and right normal force signal circuits. Each out value is sent twice, where the possible PWM duty cycle values are 20%, 40%, 60%, and 80%, with a valid range of 10-90%. This data is used by the EBCM to ensure better road braking performance.
When the C1252 OBDII fault code is stored, it means that a problem was detected in the left front normal force, which is not within the values established by the manufacturer.
The reasons for setting the C1252 OBD2 diagnostic code are:
To troubleshoot the DTC C1252 OBDII code you must do the following: