C1236high severityChassis
Abnormal Rear Left ABS Sensor (Open Circuit)
on 2020 Subaru Legacy 2.5L H4 · AWD
What this code means
An open circuit was detected in the rear left ABS wheel speed sensor. Related to OBD wheel speed sensor codes (C0050 range).
Symptoms
- ABS warning light on
- VDC light on
- No wheel speed signal rear left
Common causes
- Faulty rear left ABS sensor
- Broken sensor wiring
- Corroded connector
- Damaged tone ring
Diagnostic steps
- Scan for wheel speed codes
- Test rear left sensor resistance
- Inspect sensor wiring for open
- Check tone ring condition
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
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