2003 Isuzu Axiom Base, RWDFACTORY OEM SERVICE PROCEDURE

Brakes Control System DTCS

BRAKES CONTROL SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC Description
(DTC 14 (FLASH OUT) / C0271, C0272, C0273, C0284) CPU ERROR
(DTC 15 (FLASH OUT) / C0277, 0278) LOW OR HIGH IGNITION VOLTAGE
(DTC 17 (FLASH OUT) / C0269) EXCESSIVE DUMP TIME
(DTC 18 (FLASH OUT) / C0274) EXCESSIVE ISOLATION TIME
(DTC 21 (FLASH OUT) / C0276) G-SENSOR OUTPUT FAILURE
(DTC 22 (FLASH OUT) / C0281) BRAKE SWITCH FAILURE
(DTC 13 (FLASH OUT) / C0285) 2WD CONTROLLER IN 4WD VEHICLE CONTROLLER
(DTC 24 (FLASH OUT) / C0282) 4WD STATE INPUT SIGNAL FAILURE
(DTC 32 (FLASH OUT) / C0267, C0268) PUMP MOTOR FAILURE
(DTC 35 (FLASH OUT) / C0265, C0266) EHCU VALVE RELAY FAILURE
(DTC 41 (FLASH OUT) / C0245, C0247) FL ISOLATION SOLENOID COIL FAILURE
(DTC 42 (FLASH OUT) / C0246, C0248) FL DUMP SOLENOID COIL FAILURE
(DTC 43 (FLASH OUT) / C0241, C0243) FR ISOLATION SOLENOID COIL FAILURE
(DTC 44(FLASH OUT) / C0242, C0244) FR DUMP SOLENOID COIL FAILURE
(DTC 45 (FLASH OUT) / C0251, C0253) REAR ISOLATION SOLENOID COIL FAILURE
(DTC 46 (FLASH OUT) / C0252, C0254) REAR DUMP SOLENOID COIL FAILURE
(DTC 51 (FLASH OUT) / C0225) FL SPEED SENSOR OPEN OR SHORTED
(DTC 52 (FLASH OUT) / C0221) FR SPEED SENSOR OPEN OR SHORTED
(DTC 53 (FLASH OUT) / C0235) REAR SPEED SENSOR OPEN OR SHORTED
(DTC 61 (FLASH OUT) / C0226, C0227) FL SPEED SENSOR MISSING SIGNAL
(DTC 62 (FLASH OUT) / C0222, C0223) FR SPEED SENSOR MISSING SIGNAL
(DTC 63 (FLASH OUT) / C0236, C0237) REAR SPEED SENSOR MISSING SIGNAL
(DTC 64 (FLASH OUT) / C0229) SIMULTANEOUS DROP-OUT OF FRONT SPEED SENSOR SIGNAL
(DTC 65 (FLASH OUT) / C0238) WHEEL SPEED INPUT ABNORMALITY
(DTC 71 (FLASH OUT) / C0287) ABNORMAL TOD SIGNAL INPUT
Factory Service Tools

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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.