Problem Symptoms 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.

COMMUNICATION STOP MODE TABLE

Complete CHECK CAN BUS LINE to confirm that there is no malfunction in the CAN bus line. Select "BUS CHECK" on the hand-held tester via the CAN VIM (see DIAGNOSIS SYSTEM ).
Check the communication stop mode of the ECUs or sensors not displayed among the following: "ENGINE", "ABS/VSC/TRAC", "YAW /DECELERAT" or "STEERING SENSOR".

NOTE: If 2 or more ECUs or sensors are not displayed on the hand-held tester via the CAN VIM, perform troubleshooting for the communication stop mode of each undisplayed ECU or sensor. (Either side of the CAN sub bus lines may be open (see CHECK FOR AN OPEN IN ONE SIDE OF CAN SUB BUS LINE )).

PROBLEM SYMPTOMS TABLE

Symptom

Inspection Item

Reference or part to be replaced

"ENGINE" is not displayed on the hand- held tester via CAN VIM.

ECM COMMUNICATION STOP MODE

ECM (⁽¹⁾)

"ABS/VSC/TARC" is not displayed on the hand-held tester via CAN VIM.

SKID CONTROL ECU COMMUNICATION STOP MODE

"STEERING SENSOR" is not displayed on the hand-held tester via CAN VIM.

STEERING ANGLE SENSOR COMMUNICATION STOP MODE

"YAW /DECELERAT" is not displayed on the hand-held tester via CAN VIM.

YAW RATE SENSOR COMMUNICATION STOP MODE

⁽¹⁾	"ENGINE" is not displayed on the hand-held tester via the CAN VIM if no power is supplied to the ECM.

HINT:

DTC COMBINATION TABLE

Perform troubleshooting according to the combination of DTCs output.

DTC COMBINATION TABLE

Trouble Mode	U0100/65	U0073/94	U0123/62	U0124/95	U0126/63
SKID CONTROL ECU COMMUNICATION STOP MODE	O	O	O	O	O
YAW RATE SENSOR COMMUNICATION STOP MODE	-	-	O	O	-
STEERING ANGLE SENSOR COMMUNICATION STOP MODE	-	-	-	-	O
ECM COMMUNICATION STOP MODE (*2)	O	-	-	-	-

HINT:

Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs and sensors connected to the CAN communication system are displayed on the hand-held tester's "BUS CHECK" screen via the CAN VIM.
U0073/94, U0123/62, U0124/95, U0126/63 and U0100/65 are the DTCs in the CAN communication system.
*2 ..... U0100/65 is output if no power is supplied to the ECM.
The above DTC COMBINATION TABLE shows combinations of these DTCs.
O ..... DTCs that are being output.
- ...... DTCs that are not being output.
See SKID CONTROL ECU COMMUNICATION STOP MODE .
See STEERING ANGLE SENSOR COMMUNICATION STOP MODE .
See YAW RATE SENSOR COMMUNICATION STOP MODE .
ECM COMMUNICATION STOP MODE: replace ECM.