DTC Advanced Diagnostics: P0767: General Description

Courtesy of HONDA, U.S.A., INC.

Shift solenoid valve D is installed on the valve body assembly. It is controlled by the ON/OFF signal from the transmission control module (TCM) to apply line pressure to the B1 cut valve. The B1 cut valve does not operate when shift solenoid valve D is OFF, and operates when it is ON. Transmission fluid pressure switch A is installed on the hydraulic passage where transmission fluid pressure switch A outputs ON when the B1 cut valve is not operating. Since the B1 cut valve does not operate when shift solenoid valve D is OFF, the hydraulic pressure is output from the B1 cut valve and turns transmission fluid pressure switch A to ON. Contrary, the B1 cut valve operates when shift solenoid D is ON, the hydraulic pressure is cut off from the B1 cut valve and turns transmission fluid pressure switch A to OFF. The hydraulic pressure to clutch pressure control solenoids D and F are cut off when the B1 cut valve is operated. For detecting the malfunction, the TCM uses the values of transmission fluid pressure switch A and transmission fluid pressure sensor C or E when clutch pressure control solenoid valve D or F is output commanded. If transmission fluid pressure switch A is OFF and the value of transmission fluid pressure sensor C or E is in abnormal range for a specified time when clutch pressure control solenoid D or F is output commanded, the TCM detects a shift solenoid valve D stuck on failure and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type