Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Code A037: Front Enable Relay Coil Shorted To Ground
When front enable relay control is open, the front enable relay is de-energized. If the front enable relay is de-energized with ignition in the RUN position, voltage should be present at terminal 1D13. To set Code A037, the following conditions must occur.
- Front enable relay control is open (relay de-energized).
- Anti-lock brake controller senses no voltage at terminal 1D13.
- Anti-lock brake controller senses battery voltage at terminals 1D1, 1C3, 1C6 and 1C9.
- Observe ANTI-LOCK warning indicator to determine whether front enable relay has de-energized (light on), indicating a possible defective anti-lock brake controller. Otherwise, a short to ground in circuit No. 972 is indicated.
- If Code A037 is consistent, the anti-lock brake controller is defective.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.