- No communication with the anti-lock brake system (ABS) control module
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- Circuitry or connection in the international standards organization (ISO) 9141 network
- ABS control module
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- Loss of sensor signal during vehicle deceleration or sensor signal drops out at low speed
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- Wheel speed sensor indicator
- Sensor output is weak
- Air gap
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- Incorrectly adjusted rear brakes or brake shoe or pad linings grab
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- Rear brake adjustment
- Linings
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- Base brake mechanical concern for wheels lockup
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- Rear brake shoe linings
- Wheel cylinder
- Rear brakes
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- Rear wheel bearing oil seal
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- Soft pedal/spongy pedal no warning indicator
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- Brake line or hose, fitting, master cylinder, wheel cylinder or caliper
- Air in brake system
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- Base brake mechanical concern (hard pedal)
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- Vacuum boost
- Wheel cylinder or caliper
- Brake line or hose
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- Base brake hydraulic concern during medium/hard brake application
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- Brake line or hose, fitting, master cylinder, wheel cylinder, or caliper
- Air in brake system
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- Base brake mechanical concern during medium/hard brake application
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- Vacuum boost
- Wheel cylinder or caliper
- Brake line or hose
- Brake shoe or pad linings
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- Base brake mechanical concern for vehicle pulls
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- Rear brake
- Caliper
- Brake pad or shoe wear
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- Base brake hydraulic concern for vehicle pulls
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- One wheel locks up; no DTCs recorded
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- Caliper
- Wheel cylinder
- Brake linings
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- Hydraulic control unit (HCU)
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- The red brake warning indicator stays on when the ignition switch is in RUN
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- Circuitry
- Instrument cluster
- ABS control module
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- The ABS warning indicator stays on when the ignition switch is in RUN
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- Circuitry
- Instrument cluster
- ABS control module
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- The red brake warning indicator does not self-check
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- Circuitry
- Instrument cluster
- ABS control module
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- The yellow ABS warning indicator does not self-check
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- Circuitry
- Instrument cluster
- ABS control module
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- The yellow ABS warning indicator self-checks OK but automatically begins flashing
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- Circuitry
- Instrument cluster
- ABS control module
- ABS hydraulic control unit
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- RETRIEVE the DTCs and go to the appropriate pinpoint test.
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- Soft/hard/excessive brake pedal travel
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- Brake line or hose, fitting, master cylinder, wheel cylinder, wheel cylinder or caliper
- Air in brake system
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- ABS hydraulic control unit
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- The yellow ABS/red brake light always on, no DTCs
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- Circuitry
- ABS control module
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