Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM00000185D001X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the engine immobiliser system.
  • *: Use the intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

  • If the voltage is below 11 V, recharge or replace the battery before proceeding.
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3.

CRANK ENGINE FOR MORE THAN 10 SECONDS
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4.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output 2007 MY LX470 [08/2006 -        ]; ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: DTC CHECK / CLEAR .

(b) Delete the DTC.

(c) Recheck for DTCs. Based on the DTC output above, try to force output of the same SFI or engine immobiliser system DTC by simulating the symptoms indicated by the DTC.

Result:

Result

Proceed to

DTC does not reoccur

A

SFI system DTC reoccurs

B

Engine immobiliser system DTC reoccurs

C
B

Go to SFI system
C

Go to step 7
A

5.

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 7
A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) DATA LIST / ACTIVE TEST 2007 MY LX470 [08/2006 -        ]; ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: DATA LIST / ACTIVE TEST

(b) Terminals of ECU 2007 MY LX470 [08/2006 -        ]; ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU

(c) Inspection 2007 MY LX470 [08/2006 -        ]; ENGINE IMMOBILISER: UNLOCK WARNING SWITCH: INSPECTION

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7.

ADJUST, REPAIR OR REPLACE
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8.

CONFIRMATION TEST
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END