FixVault

Using ABS Warning Light

  1. Using a fused jumper wire or Service Connector (SST 09843-18020), connect terminals Tc and E1 of Data Link Connector No. 1 (DLC1) or Data Link Connector No. 2 (DLC2). See Fig 1. DLC1 is located on left side of engine compartment, near junction block. DLC2 is located under left side of instrument panel.
  2. Turn ignition on. If a malfunction is detected, ABS or TRAC OFF warning light will begin to flash a 2-digit Diagnostic Trouble Code (DTC) after 4 seconds. Warning light will flash first digit, followed by a 1.5-second pause and then second digit.
  3. 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. If 2 or more malfunctions are indicated at the same time lowest numbered DTC will be displayed first. Identify DTC and perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table.
  4. If ABS/TRAC system is functioning properly, a normal code will be set. During normal code, 2 seconds will elapse, and then ABS warning light will blink once every .25 second.
  5. After replacing or repairing malfunctioning components, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES . Turn ignition off. Remove fused jumper wire or Service Connector (SST 09843-18020), from DLC1.
Fig 1: Identifying Data Link Connector (DLC) Terminals
G94G47692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC Description
11  ABS Solenoid Relay Circuit
12  ABS Solenoid Relay Circuit
13  ABS Motor Relay Circuit
14  ABS Motor Relay Circuit
21  Right Front ABS/TRAC Actuator Solenoid Circuit
22  Left Front ABS/TRAC Actuator Solenoid Circuit
23  Right Rear ABS/TRAC Actuator Solenoid Circuit
24  Left Rear ABS/TRAC Actuator Solenoid Circuit
25  Open Or Short In SMC1 Circuit
26  Open Or Short In SMC2 Circuit
27  Open Or Short In SRC1 Circuit
28  Open Or Short In SRC2 Circuit
31  Right Front Wheel Speed Sensor Circuit
32  Left Front Wheel Speed Sensor Circuit
33  Right Rear Wheel Speed Sensor Circuit
34  Left Rear Wheel Speed Sensor Circuit
41  IG Power Supply Circuit
43 (1) ABS Control System Malfunction
44 (1) NE Signal Circuit
49  Brakelight Switch Circuit
51  ABS Pump Motor Lock
53 (1) ECM Communication Circuit Malfunction
61 (1) Engine Control System Malfunction
71 (2) Right Front Speed Sensor Signal Voltage Low
72 (2) Left Front Speed Sensor Signal Voltage Low
73 (2) Right Rear Speed Sensor Signal Voltage Low
74 (2) Left Rear Speed Sensor Signal Voltage Low
75 (2) Abnormal Change In Output Signal From Right Front Speed Sensor
76 (2) Abnormal Change In Output Signal From Left Front Speed Sensor
77 (2) Abnormal Change In Output Signal From Right Rear Speed Sensor
78 (2) Abnormal Change In Output Signal From Left Rear Speed Sensor
(1) TRAC OFF warning light will blink when DTC is set.
(2) Identify DTC and probable cause. Repair as necessary. See SPEED SENSOR DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table.