C1246
ABS Outlet Valve Coil RR Circuit Failure
Chassis Chassis/Safety ABS Brake Control 🔴 Serious — Stop or limit driving
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What This Actually Means
In plain language — no jargon

The ABS system's rear-right outlet valve coil isn't working properly, preventing the brake module from releasing pressure when needed. Think of it like a stuck valve in a water pipe that won't open to let water flow.

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Symptoms You May Notice
3 known symptoms for this code
ABS warning light illuminated on dashboard
Loss of ABS functionality; brakes may lock up during hard braking
Possible extended stopping distances or reduced brake responsiveness
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ABS module sends a command signal to the rear-right outlet valve coil to modulate brake pressure during wheel slip events. The ECU monitors the coil's resistance and current draw to verify the coil is functioning properly. If resistance is out of range or current draw is abnormal, a circuit failure is detected.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Coil Resistance 4-10 ohms (varies by model) Open circuit or resistance >20 ohms
Coil Current Draw 0.5-2.5 amps during activation <0.1 amps or >3 amps
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
ABS module connector
Disconnect and reconnect the ABS module's wiring harness to remove corrosion or poor contact.
2
Rear-right ABS outlet valve coil
Remove the ABS module or wheel speed sensor connector and test coil resistance with a multimeter; replace if open circuit is confirmed.
3
ABS module wiring harness
Inspect wiring for cuts, corrosion, or loose pins between the ABS module and rear-right valve; repair or replace damaged sections.