Retrieving DTC
NOTE:
Speed sensor diagnostics and code retrieval use different DLC1 terminals with short pin disconnected. If a speed sensor or speed sensor circuit problem is suspected, see SPEED SENSOR DIAGNOSTICS .
- Ensure battery voltage is about 12 volts. Turn ignition on. ABS light should illuminate, then go out after 3 seconds. If warning light does not illuminate, check fuse, bulb, and wiring harness. See TROUBLE SHOOTING .
- Connect jumper wire between DLC1 terminals Tc and E1. Remove short pin from terminals WA and WB of DLC1. See Fig 1. Turn ignition on. If a DTC is stored, 4 seconds will elapse, then ABS light will begin to flash a 2-digit DTC. First series of flashes indicates first digit of DTC. After a 1.5-second pause, second series of flashes indicates second digit of DTC.
- If 2 or more DTC are stored, there will be a 2.5-second pause between each DTC. After all DTC are displayed, a 4-second pause will occur, then all DTC will repeat. If ABS system is functioning properly, ABS light will flash 2 times every second. For DTC identification, see DTC IDENTIFICATION CHART table.
- After replacing or repairing malfunctioning components, clear DTC. If a battery cable was disconnected during repairs, all DTC will be erased. If battery cable was not disconnected during repairs, see CLEARING DTC .
DTC IDENTIFICATION CHART
| DTC | Possible Cause |
|---|---|
| 11 | ABS Solenoid Relay Open Or Short Circuit |
| 12 | ABS Solenoid Relay Circuit Short To Voltage |
| 21 | Hydraulic Brake Booster Solenoid Open Or Short SFR Circuit |
| 22 | Hydraulic Brake Booster Solenoid Open Or Short SFL Circuit |
| 23 | Hydraulic Brake Booster Solenoid Open Or Short SRR Circuit |
| 25 | Hydraulic Brake Booster Solenoid Open Or Short SA1 Circuit |
| 26 | Hydraulic Brake Booster Solenoid Open Or Short SA2 Circuit |
| 31 | Right Front Wheel Speed Sensor Signal Malfunction |
| 32 | Left Front Wheel Speed Sensor Signal Malfunction |
| 33 | Right Rear Wheel Speed Sensor Signal Malfunction |
| 34 | Left Rear Wheel Speed Sensor Signal Malfunction |
| 37 | Tires Are Not All Equal Size |
| 41 | Low Battery voltage Or Open IG1 Circuit |
| 42 | Open IG2 Circuit |
| 43 | Deceleration Sensor Malfunction |
| 44 | Deceleration Sensor Open Or Short Circuit |
| 45 | Deceleration Sensor Malfunction |
| 48 | Rear Differential Lock Open Or Short Circuit Or Rear Differential Is Locking |
| 49 | Brakelight Switch Open Circuit |
| 51 | Pump Motor is Seized Or Pump Motor Open Ground Circuit |
| 52 | Hydraulic Brake Booster Pump Motor Malfunction |
| 53 | Hydraulic Brake Booster Pump Motor Relay Malfunction |
| 54 | Pressure Switch Malfunction |
| 56 | Accumulator Low Pressure Malfunction |
| 57 | Power Supply Drive Circuit Malfunction |
| Always On | ABS Warning Light Or ECU Malfunction |