Pressure Switch (For Pump Control) Check
WARNING: This page is about a different car, the 2006 Mitsubishi Montero. However, it is still accessible from the selected car via links, so may be relevant.
- Depress the brake pedal repeatedly more than 40 times until the pedal depressing force feels heavy with the ignition switch at the "LOCK" (OFF) position to release the pressure of HBB power supply system.
- Disconnect the HBB connector "A".
- Measure the resistance between terminals No. 33 and No. 35 at the HBB connector "A".TESTER CONNECTION AND RESISTANCE REFERENCE
TESTER CONNECTION SPECIFIED CONDITION RESISTANCE VALUE kΩ 33 - 35 Continuity Approximately 1 - If the resistance value exceeds the specified value, replace the HBB master cylinder and hydraulic unit assembly.
- With the HBB connector "A" disconnected, turn "ON" the ignition switch to operate the pump motor. Then measure the resistance between terminals No. 33 and No. 35 at the HBB connector "A" while the pump motor is operating.TESTER CONNECTION AND RESISTANCE REFERENCE
TESTER CONNECTION SPECIFIED CONDITION RESISTANCE VALUE Ω 33 - 35 Continuity Less than 2 - If the resistance value exceeds the specified value, replace the HBB master cylinder and hydraulic unit assembly.
- Connect the HBB connector "A".
- Erase HBB diagnostic trouble codes (Refer to TROUBLE CODE DIAGNOSIS ).