C1253high severityChassis
Fail-Safe Relay Malfunction
on 2000 Toyota 4Runner 2.7L I4 · 4WD
What this code means
The ABS fail-safe (solenoid) relay is not operating correctly, disabling the ABS system. No direct OBD P-code equivalent exists for this manufacturer-specific code.
Symptoms
- ABS warning light on
- ABS disabled
- Brake warning light on
Common causes
- Faulty fail-safe relay
- Open relay control circuit
- Corroded relay connector
- Faulty ABS module driver
Diagnostic steps
- Command relay with scan tool
- Test relay coil and contacts
- Check relay control circuit wiring
- Replace relay or ABS actuator
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Other Chassis codes on this vehicle
C0021
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C0022
RF Wheel Speed Sensor Range/Performance
C0023
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C0024
RR Wheel Speed Sensor Range/Performance
C0025
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C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic