THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570)

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Last Modified: 11-27-2007		1.6 D
Service Category: Vehicle Interior	Section: Theft Deterrent/Keyless Entry
Model Year: 2008	Model: LX570	Doc ID: RM000000QY401YX
Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Use these procedures to troubleshoot the engine immobiliser system.

*: Use the Techstream.

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

3.	CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output .

(b) Clear the DTCs .

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

Result

Result	Proceed to
DTC is not output	A
SFI system DTC is output	B
LIN communication system DTC is output	C
Steering lock system DTC is output	D
Engine immobiliser system DTC is output	E

Go to DIAGNOSTIC TROUBLE CODE CHART

4.	PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table .

Result

Result	Proceed to
Fault is not listed in problem symptoms table	A
Fault is listed in problem symptoms table	B

Go to step 6

5.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

(b) Terminals of ECU

6.	ADJUST, REPAIR OR REPLACE

7.	CONFIRMATION TEST

END