Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Corolla and 2005 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DLC3

Measure the resistance according to the value (s) in the table below.

Result:

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified value	Result
D1-6 (CANH) - D1-14 (CANL)	IG switch OFF	108 to 132 Ω	A
D1-6 (CANH) - D1-14 (CANL)	IG switch OFF	132 Ω or higher	B

NOTE: When the measured value is 132 Ω or more and the CAN communication system diagnostic code is output, there may be a fault besides disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "How to proceed with troubleshooting" after repairing the trouble area.

Fig 1: Identifying DLC3 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

B: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
A: GO TO NEXT STEP

READ OUTPUT DTC

Read the output diagnostic codes.

Standard:

TESTER CONNECTION SPECIFIED VALUE

U0073/94, U0123/62, U0124/95 and U0126/63 are output simultaneously.	A
Only U0126/63 is output.	B

NOTE: Diagnostic codes other than the CAN communication system diagnostic codes (U0073/94, U0123/62, U0124/95, U0126/63) may be output simultaneously with the CAN codes.

B: Go to step 4

CHECK CAN MAIN BUS LINE FOR DISCONNECTION (SKID CONTROL ECU JUNCTION CONNECTOR)

Disconnect the connector (S1) from the skid control ECU.
Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified value
S1-11 (CANH) - S1-25 (CANL)	IG switch OFF	108 to 132 Ω

Fig 2: Identifying Skid Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (SKID CONTROL ECU - JUNCTION CONNECTOR)
OK: GO TO NEXT STEP

REPLACE SKID CONTROL ECU WITH ACTUATOR (SEE SPEED SENSOR FRONT LH )

CHECK CAN MAIN BUS LINE FOR DISCONNECTION (STEERING SENSOR JUNCTION CONNECTOR)

Disconnect the connector (S12) from the steering sensor.
Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified value
S12-10 (CANH) - S12-9 (CANL)	IG switch OFF	108 to 132Ω

Fig 3: Identifying Steering Sensor Wire Harness View

NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (STEERING SENSOR - JUNCTION CONNECTOR)
OK: GO TO NEXT STEP

REPLACE STEERING SENSOR (SEE STEERING SENSOR )