How To Proceed With Troubleshooting

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

NOTE:

DTCs for the CAN communication system are as follows: U0073/42, U0100/65
Refer to troubleshooting of each system if DTCs regarding the CAN communication system are not output.

VEHICLE BROUGHT TO WORKSHOP
- GO TO NEXT STEP
INSPECT BATTERY VOLTAGE
Standard voltage: 11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.
- GO TO NEXT STEP
CHECK AND CLEAR DTC
- GO TO NEXT STEP
CHECK CAN BUS LINE
1. Check CAN bus line (see INSPECTION PROCEDURE ).

CHECK INTELLIGENT TESTER VIA CAN VIM

Select "BUS CHECK" (see DIAGNOSIS SYSTEM ).

Result

INTELLIGENT TESTER VIA CAN VIM

Result	Proceed
All ECUs connected to CAN communication system are displayed.	A
An ECU not connected to CAN communication system is displayed.	B

NOTE: Non-installed ECUs are not displayed. Do not mistaken the ECU to be having a communication stop malfunction.

B: COMMUNICATION STOP MODE TABLE

A: GO TO NEXT STEP

DTC COMBINATION TABLE
1. Confirm trouble according to the combination of output DTCs regarding the CAN communication system.
  HINT:
  
  Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs connected to the CAN communication system are displayed on the intelligent tester's "BUS CHECK" screen via CAN VIM.
- GO TO NEXT STEP
CIRCUIT INSPECTION
- GO TO NEXT STEP
IDENTIFICATION OF PROBLEM
- GO TO NEXT STEP
REPAIR OR REPLACE
- GO TO NEXT STEP
CONFIRMATION TEST
- END