Mazda CX-5 Service & Repair Manual: Brake System/ABS Warning Light

Mazda CX-5 Service & Repair Manual / Brakes / Brake Control, Vehicle Dynamics / ABS / Brake System/ABS Warning Light

Purpose/Function

The brake system/ABS warning light is built into the instrument cluster. If a malfunction is detected in the system with the parking brake released, the warning light illuminates to notify the driver.

Construction/Operation

When the DSC system and CAN lines are functioning normally, the brake system/ABS warning light illuminates when the ignition is switched to ON to check for a burned-out bulb, and then turns off after approx. 3 s. At this time, while the parking brake is activated, the brake system warning light remains illuminated, however, it turns off after the parking brake is released.
The brake system/ABS warning light illuminates during a system malfunction, and the control is as follows:

ABS warning light illuminated:

ABS control disabled.

ABS warning light and brake system warning light illuminated:

ABS and EBD controls disabled.

Fail-safe

Function not equipped.

ABS Wheel Speed Sensor And ABS Sensor Rotor

Purpose/Function The ABS wheel-speed sensor and ABS sensor rotor detect the rotation condition of each wheel and transmit this information to the DSC HU/CM. The signal from the ABS w ...

Front ABS Wheel Speed Sensor Inspection

Sensor Output Value Inspection CAUTION: Resistance inspection using other testers may cause damage to the ABS wheel-speed sensor internal circuit. Be sure to use the M-MDS to inspect the A ...

Other materials:

PID/Data Monitor Inspection [Front Body Control Module (Fbcm)]
1. Connect the M-MDS to the DLC-2. 2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. a. Select “DataLogger”. b. Select “Modules”. c. Select “F_BCM”. 3. Select the applicable PID from the PID table. 4. Verify the PID ...

ABS Control
Outline ABS control occurs when wheel slip is determined by the DSC CM (based on the four ABS wheel-speed sensors). Then, the DSC HU inlet and outlet solenoid valves are operated and brake fluid pressure is controlled accordingly to prevent wheel lock-up. Feature Use of ...

Oil Control Valve (OCV) Inspection [Skyactiv G 2.0]
Coil Resistance Inspection 1. Disconnect the negative battery cable.. 2. Remove the plug hole plate.. 3. Disconnect the OCV connector. 4. Measure the resistance between terminals A and B using an ohmmeter. OCV coil resistance 6.9вЂ”7.5 ohms [20В°C {68В°F}] If ...