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Toyota C1243 Code – ABS Rear Left Wheel Sensor Fault
Limited
Safe to drive :
Toyota vehicles only
Applies only to :
Not applicable to :
This explanation does NOT apply to other brands.
Medium
Severity level :
When Does This Code Appear on the Vehicles
C1243 occurs when ABS module detects rear left wheel sensor malfunction.
What This Code means on the Vehicles
Toyota-specific ABS warning for rear left wheel speed sensor.
Why This is different from a generic OBD2 Code
Generic scanners cannot map ABS faults to specific wheels for Toyota.
Common Situations That Trigger This Code
Sensor fault; Wiring harness issue; Connector corrosion.
What Will NOT Fix This Code
Replacing unrelated components; Ignoring ABS alert.
How to Clear This Code on Vehicles
Inspect sensor and wiring; clear code using Techstream.
Related Manufacturer Specific Codes
Toyota C1241; Toyota C1242
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