UNIVERSAL · DTC LOOKUP
C0040 — ABS Module Internal Failure
Universal diagnostic code. Below: what it means, common causes, symptoms, and the exact bench-programming fix path.
Common causes
- •Internal solenoid driver IC failure
- •EEPROM corruption
- •Bad capacitor on controller board
- •Water intrusion damage
Symptoms you'll see
- •ABS warning light on
- •Traction control disabled
- •Stability control disabled
- •Brake lights may behave oddly
The fix path
ABS Module Repair ($499) — bench-level repair of common driver IC failures + EEPROM corruption. Ship just the electronic module (not the hydraulic block in most cases).
AML services that fix this
Mail in the affected module and we repair it on the bench: about a week on the bench (2–3 business days with rush repair). Flat pricing, flat-rate return shipping at checkout.
Related diagnostic codes
B0028Airbag deployed — SRS module crash data storedB1004SRS Module Internal Failure / Crash Data StoredABS no communicationABS module fails to respond to OBD scannerCluster mileage mismatchReplacement cluster shows wrong mileageRKE not respondingRemote keyless entry not working — module deadCrank-no-startEngine cranks normally but won't startNot sure which service applies?
Text us your year/make/model + which scanner caught the code — we'll tell you exactly which module to ship and which service to pick.