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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Brakes - Abs With EBD & BD & TRAC & VSC (Diagnostics)) >> Diagnostic Trouble Code Table

Diagnostic Trouble Code Table

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

DTC table of ABS: 

DIAGNOSTIC TROUBLE CODE TABLE (ABS)

DTC No. Detection Item Trouble Area
C0200/31  (*1) Right front wheel speed sensor signal malfunction
  • Right front speed sensor
  • Speed sensor circuit
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C0205/32  (*1) Left front wheel speed sensor signal malfunction
  • Left front speed sensor
  • Speed sensor circuit
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C0210/33  (*1) Right rear wheel speed sensor signal malfunction
  • Right rear speed sensor
  • Speed sensor circuit
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C0215/34  (*1) Left rear wheel speed sensor signal malfunction
  • Left rear speed sensor
  • Speed sensor circuit
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C0226/21  Open or short circuit in hydraulic brake booster solenoid circuit (SFR circuit)
  • SFRH or SFRR circuit
  • Master cylinder solenoid
C0236/22  Open or short circuit in hydraulic brake booster solenoid circuit (SFL circuit)
  • SFLH or SFLR circuit
  • Master cylinder solenoid
C0246/23  Open or short circuit in hydraulic brake booster solenoid circuit (SRR circuit)
  • SRRH or SRRR circuit
  • Master cylinder solenoid
C0256/24  Open or short circuit in hydraulic brake booster solenoid circuit (SRL circuit)
  • SRLH or SRLR circuit
  • Master cylinder solenoid
C0278/11  Open or short circuit in ABS solenoid relay circuit
  • ABS SOL fuse
  • ABS solenoid relay
  • ABS solenoid relay circuit
  • Master cylinder solenoid
C0279/12  +B short circuit in ABS solenoid relay circuit
  • ABS SOL fuse
  • ABS solenoid relay
  • ABS solenoid relay circuit
  • Master cylinder solenoid
C1202/58  Brake fluid level low/Open circuit in brake fluid level warning switch circuit
  • Brake fluid level
  • Brake fluid level warning switch
  • Brake fluid level warning switch circuit
C1225/25  Open or short in hydraulic brake booster solenoid circuit (SMC (SA1) circuit)
  • SMCF circuit
  • Master cylinder solenoid
C1226/26  Open or short in hydraulic brake booster solenoid circuit (SPC (SA2) circuit)
  • SREA circuit
  • Master cylinder solenoid
C1227/27  Open or short in hydraulic brake booster solenoid circuit (SRC (SA3) circuit)
  • SREC circuit
  • Master cylinder solenoid
C1228/28  Open or short in hydraulic brake solenoid circuit (STR circuit)
  • STR circuit
  • Master cylinder solenoid
C1235/35  Metal stick to speed sensor (FR)
  • Right front speed sensor
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C1236/36  Metal stick to speed sensor (FL)
  • Left front speed sensor
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C1238/38  Metal stick to speed sensor (RR)
  • Right rear speed sensor
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C1239/39  Metal stick to speed sensor (RL)
  • Left rear speed sensor
  • Speed sensor rotor
  • Sensor installation
  • Master cylinder solenoid
C1241/41  Low battery positive voltage or abnormally high battery positive voltage
  • Battery
  • ECU-IG fuse
  • Charging system
  • Power source circuit
C1242/42  Open circuit in IG2 circuit
  • Battery
  • IGN fuse
  • IC regulator
  • Power source circuit
C1243/43  (*1) Malfunction in deceleration sensor (constant output)
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor circuit
  • CAN communication system
C1244/44  Open or short circuit in deceleration sensor circuit
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor circuit
  • CAN communication system
C1245/45  (*1) Malfunction in deceleration sensor
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor circuit
  • CAN communication system
C1246/46  Malfunction in master cylinder pressure sensor
  • Master cylinder pressure sensor
  • Master cylinder pressure sensor circuit
  • Stop light switch circuit
  • Master cylinder solenoid
C1249/49  Open circuit in stop light switch circuit
  • Stop light switch
  • Stop light switch circuit
  • Rear combination lamp (stop light) assy
C1251/51 (*1, 3) Pump motor is locked/Open circuit in pump motor ground Hydraulic brake booster pump motor circuit
C1252/52  (*2, 3) Hydro-booster pump motor malfunction
  • Hydraulic brake booster pump motor
  • Hydraulic brake booster pump motor circuit
  • Accumulator pressure sensor
C1253/53  (*2) Hydro-booster pump motor relay malfunction
  • Hydraulic brake booster pump motor
  • Hydraulic brake booster pump motor circuit
C1254/54  Pressure sensor or switch malfunction
  • Hydraulic brake booster
  • Accumulator pressure sensor
  • Master cylinder pressure sensor
C1256/56  (*2, 3) Accumulator low pressure malfunction
  • Hydraulic brake booster
  • Hydraulic brake booster pump motor
  • Hydraulic brake booster pump motor circuit
  • Accumulator pressure sensor
C1257/57  (*2) Power supply drive circuit malfunction Hydraulic brake booster pump motor circuit
C1268/68  (*4) L4 signal pickup malfunction
  • 4WD control (L4) switch
  • 4WD control (L4) switch circuit
  • 4WD control ECU
C1337/37  Different diameter tire malfunction
  • Tire size
  • Speed sensor
  • Speed sensor rotor
  • Speed sensor circuit
C1381/97  Malfunction in power supply voltage of yaw/deceleration sensor
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor power source circuit
  • CAN communication system
U0073/94
(HOW TO PROCEED WITH TROUBLESHOOTING
Control module communication bus off Wire harness
U0124/95
(HOW TO PROCEED WITH TROUBLESHOOTING
Lost communication with lateral acceleration sensor module
  • Wire harness
  • Yaw rate and deceleration sensor
(*1), (*2): Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed.
  • (*1):
    1. Drive the vehicle at 12 mph (20 km/h) for 30 seconds or more and check that the ABS warning light goes off.
    2. Clear the DTC (see DTC CHECK/CLEAR  ).
  • (*2):
    1. Keep the vehicle in a stationary condition for 5 seconds or more and depress the brake pedal lightly 2 or 3 times.
    2. Repeat the above operations 3 times or more and check that the ABS warning light goes off.
    3. Clear the DTC (See DTC CHECK/CLEAR  ).

HINT:
  • In some cases, the hand-held tester cannot be used when the ABS warning light remains on.
  • When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 is output, inspect and repair the trouble areas indicated by these codes first.

(*3): The skid control buzzer sounds.
(*4): Multi Mode 4WD

DTC table of VSC: 

DIAGNOSTIC TROUBLE CODE TABLE (VSC)

DTC No. Detection Item Trouble Area
C1201/51  Engine control system malfunction Engine control system
C1202/52  Brake fluid level low/Open circuit in brake fluid level warning switch circuit
  • Brake fluid level
  • Brake fluid level warning switch
  • Brake fluid level warning switch circuit
C1203/53  Engine control system communication circuit malfunction ECM
C1210/36  Zero point calibration of yaw rate sensor undone
  • Yaw rate and deceleration sensor
  • Zero point calibration undone
  • Park/Neutral position switch (P) circuit
C1223/43  Malfunction in ABS control system ABS control system
C1231/31  Malfunction in steering angle sensor
  • Steering angle sensor
  • Steering angle sensor circuit
  • Steering angle sensor power supply
  • CAN communication system
C1232/32  Malfunction in deceleration sensor
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor circuit
  • CAN communication system
C1234/34  Malfunction in yaw rate sensor
  • Yaw rate and deceleration sensor
  • Yaw rate and deceleration sensor circuit
  • CAN communication system
C1258/58  ((1)) Open circuit in 2-4 signal change circuit
  • 4WD control (4WD) switch
  • 4WD control (4WD) switch circuit
  • 4WD control ECU
C1290/66  Malfunction in zero point of steering sensor Steering angle sensor
C1336/39  Zero point calibration of deceleration sensor undone
  • Yaw rate and deceleration sensor
  • Zero point calibration undone
  • Park/Neutral position switch (P) circuit
C1340/47  ((2)) Open circuit in center differential lock signal (during center differential lock ON)
  • Center diff. lock switch
  • Center diff. lock switch circuit
  • Center diff. lock indicator light circuit
  • 4WD control ECU
C1380/64  Malfunction in stop light relay system
  • Stop light operation relay
  • Stop light operation relay circuit
U0100/65
(HOW TO PROCEED WITH TROUBLESHOOTING
Lost communication with ECM/PCM "A" Wire harness
U0123/62
(HOW TO PROCEED WITH TROUBLESHOOTING
Lost communication with yaw rate sensor module
  • Wire harness
  • Yaw rate and deceleration sensor
U0126/63
(HOW TO PROCEED WITH TROUBLESHOOTING
Lost communication with steering angle sensor module
  • Wire harness
  • Steering angle sensor
(1) Multi Mode 4WD
(2) 4WD

HINT:

In some cases, the hand-held tester cannot be used when the VSC TRAC warning light remains on.