DTC P1207 GMC
Abnormality in periodical signal for RR wheel speed sensor
Abnormality in periodical signal for RR wheel speed sensor
Description
The ASC-ECU monitors the signals from each wheel speed sensor while the vehicle is being driven. If any periodical drop is found in these sensor signals, ASC-ECU will set the relevant DTC. NOTE: When DTC C102B is also set, carry out diagnosis with particular emphasis on wiring harness and connector failures between ASC-ECU and the wheel speed sensor.
Cause and Solution
Excessive gap between the wheel speed sensor and the wheel speed detection encoder Wheel bearing malfunction Deformation of the wheel speed detection encoder Adhesion of foreign materials on the wheel speed sensor Adhesion of foreign materials on the wheel speed detection encoder Malfunction of wheel speed sensor Improper installation of the wheel speed sensor ASC-ECU malfunction The number of poles on the Magnetic encoder for wheel speed detection (N-pole and S-pole) is changed
Video Guide
Diagnostic Info
- DTC Code: P1207
- Brand: GMC