DTC 61 - Bpm Valve Pump Motor Fault: Notes

Pump motor returns brake fluid to master cylinder brake circuit at brake pressure modulator during anti-lock braking. During normal braking, pump does not operate. When vehicle begins to move after start-up, EBCM will turn on pump motor and perform a self-check of pump motor and pump motor circuit. This check may be felt and heard by the driver when vehicle begins to move and is considered part of normal operation. Pump motor is an integral part of brake pressure modulator and cannot be serviced separately.

Pump motor relay provides power to pump motor. Pump motor relay is located in EBCM assembly and cannot be replaced.

DTC 61 will set if battery voltage is present at pump motor without pump motor being requested to activate or if battery voltage is not present at pump motor within 60 milliseconds after pump motor has been requested to activate.

If DTC 61 is set, anti-lock braking is disabled and EBCM turns on ANTI-LOCK indicator for remainder of ignition cycle. If failure is intermittent, EBCM will enable system at next ignition cycle and a history DTC 61 will be present.

1. Checks that fusible link "B" feeding EBCM motor relay circuit is good.
2. Checks for open in pump motor ground circuit No. 1250.
3. Checks for voltage from EBCM motor relay circuit, using the EBCM ground to complete the circuit.
4. Checks EBCM connector terminals for good contact.
5. Checks EBCM connector for good retention to EBCM when installed.
6. Checks condition of connector.
7. Checks integrity of pump motor and pump motor circuitry internal to the BPM valve.
8. Checks operation of pump motor and circuitry, using Tech 1.