Diagnostic Trouble Code Chart

• When removing the part, turn the ignition switch OFF.

• When replacing steering angle, master cylinder pressure, yaw rate, deceleration sensors or/ and the ECU, make sure to perform steering angle, master cylinder pressure, yaw rate, deceleration sensors zero point calibration (See PRE-CHECK ).

• Zero point calibration is needed not only when replacing the VSC related parts, but also when replacing or repairing the steering related parts and when changing the vehicle's straight ahead condition for toe adjustment.

• Using SST 09843-18040, connect the terminals Tc and CG.

• If any abnormality is not found when inspecting parts, inspect the ECU.

• If a malfunction code is displayed during the DTC check, check the circuit listed for that code. For details of each code, see Fig. 21 for respective "DTC No." in the DTC chart.

DTC chart of ABS system:

2001 BRAKES ABS With EBD & Trac & VSC System - Diagnostics - Sequoia

DTC Nu.

Detection Item

Trouble Area

GO200/3111

Right front wheel speed sensor signal malfunction

• Right front, reft front, right rear and left rear speed sensor

• Each speed sensor circuit

• Speed sensor rotor

C020S/32*1

Left front wheel speed sensor signal malfunction

C0210/33'1

Right rear wheel speed sensor signal malfunction

C0215,'34'f

Left rear wheel speed sensor signal malfunction

C0226/21

Malfunction in ABS & VSC solenoid valves

• ABS&VSC actuator •ABS & VSC solenoid circuit

00278/11

Open or shorl circuit In ABS & VSC relay circuit

• ABS & VSC solenoid relay circuit •ABS&VSC molorreiay

• ABS & vsc motor relay circuit

C1241/41

Low battery posilive voltage or abnormally high battery positive voltage

• Charging system

• Power source circuit

C1249/49

□pen circuit in stop light switch circuit

• Stop lightswitch •Stoplight switch circuit

Open circuit in pump motor circuit

• ABS & VSC pomp motor

C1337/37

Some lire is different in size from It it other tires

• Tire size

C1340/48

Center diff. lock circuit malfunction

■ Center diff. lock position switch

• Center diff. lock position switch circuit

• Center diff. lock indicator light circuit

• Translate ECU

Always ON

Malfunction in skid control ECU

• charging system

• Power source circuit •ABS warning light circuit

*1: As long as the following operations are not performed, ABS warning light will not go OFF only by repairing the trouble area.

GQMtOITe

Fig. 21: Diagnostic Trouble Code Chart Of ABS System

1. Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light goes off.

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