Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001A53007X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Using these procedures to troubleshoot the vehicle stability control system.
  • *: Use intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge the battery before proceeding.

NEXT

3.

CHECK COMMUNICATION FUNCTION OF LARGE-SCALE BODY MULTIPLEX COMMUNICATION SYSTEM (BEAN)

(a) Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

Result

Result

Proceed to

MPX DTC is not output

A

MPX DTC is output

B
B

Go to MULTIPLEX COMMUNICATION SYSTEM
A

4.

CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)*

(a) Use the intelligent tester to check for normal functioning of the CAN communication system.

(1) Perform bus check (communication malfunction DTC).

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
B

Go to CAN COMMUNICATION SYSTEM
A

5.

CHECK FOR DTC*

(a) Check for DTC and note any codes that are output.

(b) Delete the DTC.

(c) Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.

Result

Result

Proceed to

If DTC does not reoccur

A

If DTC is reoccurs

B
B

Go to step 7
A

6.

PROBLEM SYMPTOMS TABLE

Result

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

Go to step 8
A

7.

SYMPTOM SIMULATION
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8.

OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU 2007 MY LX470 [08/2006 -        ]; BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: TERMINALS OF ECU .

(b) DATA LIST/ ACTIVE TEST 2007 MY LX470 [08/2006 -        ]; BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: DATA LIST / ACTIVE TEST .

NEXT

9.

REPAIR OR REPLACE
NEXT

10.

CONFIRMATION TEST*
NEXT

END