DTC 62

DTC 62 Low Brake Pedal During An ABS Stop (part 1 Of 2):

Fig. 99 Code 62: Low Brake Pedal During An ABS Stop (part 2 Of 2):

DTC 62 Low Brake Pedal During An ABS Stop:

CIRCUIT OPERATION
The EBCM/EBTCM monitors brake pedal position using the TCC/antilock brake switch. The normally closed switch opens when the brake pedal is depressed approximately 40% down. The EBCM/EBTCM also monitors pump motor operation using a pump motor run sensor.

During most ABS braking conditions the EBCM turns on the pump motor, replenishing the PMV assembly reservoir and applying fluid pressure to the master cylinder. This causes the brake pedal to gradually rise. The EBCM/EBTCM turns off the pump motor when the brake pedal height sufficiently rises to close the TCC/antilock brake switch.

FAILURE CONDITIONS
During ABS braking, DTC 62 sets when the EBCM/EBTCM determines the pump is working, and brake pedal height has not sufficiently risen to close the TCC/antilock brake switch after 3 seconds.

This DTC may indicate a hydraulic problem. Some possible causes include air in the brake lines or a pump motor mechanical failure. Non-hydraulic causes for DTC 62 include an open 848 or 853 CKT or a misadjusted/defective TCC/antilock brake switch.