Abs Light Diagnostics

Ensure battery voltage is at least 12 volts. Turn ignition on. ABS light should illuminate and then go out after 3 seconds. If warning light does not illuminate, check fuse, bulb and wiring harness.
With ignition on, disconnect short pin from Data Link Connector No. 1 (DLC1). See Fig 1. DLC1 is located in engine compartment. Using a jumper wire, connect terminals Tc and E1 of Data Link Connector No. 1 (DLC1) or Data Link Connector No. 2 (DLC2). See Figure. DLC2 is located under left side of instrument panel, near kick panel.
If a malfunction is detected, ABS light will begin to flash a 2-digit Diagnostic Trouble Code (DTC) after 4 seconds. ABS light will flash first digit, followed by a 1.5-second pause and then second digit.
Count number of flashes to obtain digits of 2-digit code. If 2 or more codes are stored, a 2.5-second pause will separate codes. See DIAGNOSTIC TROUBLE CODES table for code diagnosis. See appropriate chart under DIAGNOSTIC CHARTS.
If ABS is functioning properly, 2 seconds will elapse, and then ABS light will blink once every .25 second.
After replacing or repairing malfunctioning components, clear diagnostic trouble codes. If battery cable was disconnected during repairs, all codes will be erased. If battery cable was not disconnected during repairs, see CLEARING DIAGNOSTIC TROUBLE CODES under DIAGNOSIS & TESTING.

DIAGNOSTIC TROUBLE CODES

Code

Diagnosis

Open Or Short In ABS Solenoid Relay Circuit

B+ Short In ABS Solenoid Relay Circuit

Open Or Short In ABS Motor Relay Circuit

B+ Short In ABS Motor Relay Circuit

15 ⁽¹⁾

Open Or Short In TRAC Solenoid Relay Circuit

16 ⁽¹⁾

B+ Short In TRAC Solenoid Relay Circuit

17 ⁽¹⁾

Open Or Short In TRAC Motor Relay Circuit

18 ⁽¹⁾

B+ Short In TRAC Motor Relay Circuit

Open Or Short In ABS Actuator Solenoid SFR Circuit

Open Or Short In ABS Actuator Solenoid SFL Circuit

Open Or Short In ABS Actuator Solenoid SRR Circuit

24 ⁽¹⁾

Open Or Short In ABS Actuator Solenoid SLR Circuit

25 ⁽¹⁾

Open Or Short In TRAC Actuator Solenoid SMC Circuit

26 ⁽¹⁾

Open Or Short In TRAC Actuator Solenoid SAC Circuit

27 ⁽¹⁾

Open Or Short In TRAC Actuator Solenoid SRC Circuit

Right Front Wheel Speed Sensor Signal Malfunction

Left Front Wheel Speed Sensor Signal Malfunction

Right Rear Wheel Speed Sensor Signal Malfunction

Left Rear Wheel Speed Sensor Signal Malfunction

Open In Left Front Or Right Rear Speed Sensor Circuit

Open In Right Front Or Left Rear Speed Sensor Circuit

Low Or High Battery Voltage

ABS Pump Motor Locked Or Open In ABS Pump Motor Ground

52 ⁽¹⁾

TRAC Pump Motor Locked Or Open In ABS Pump Motor Ground

53 ⁽¹⁾

TRAC Pump Motor Long Time Energizing

54 ⁽¹⁾

TRAC Pump Motor Operation Frequency Excessive

55 ⁽¹⁾

Brake Fluid Reservoir Level Low

56 ⁽¹⁾

Open Or Short In Pressure Sensor Circuit

57 ⁽¹⁾

Pressure Sensor Malfunction

61 ⁽¹⁾

TRAC ECU Communication Abnormal

62 ⁽¹⁾

Wheel Speed Sensor Signal Malfunction

Always On

Malfunction In ABS ECU

⁽¹⁾	This code applies to vehicles equipped with TRAC.

Fig 1: Locating Short Pin