Engine Immobilizer System (w/ Smart Key System)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM (w/ Smart Key System): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the engine immobiliser system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally.

Result





B -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output Engine Immobilizer System (w/ Smart Key System).

(b) Clear the DTCs Engine Immobilizer System (w/ Smart Key System).

(c) Recheck for DTCs Engine Immobilizer System (w/ Smart Key System). Based on the DTCs output above, try to cause the output of the same SFI system, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.

Result





B -- Go to DIAGNOSTIC TROUBLE CODE CHART SFI System

C -- Go to DIAGNOSTIC TROUBLE CODE CHART CAN Communication System

D -- Go to DIAGNOSTIC TROUBLE CODE CHART Engine Immobilizer System (w/ Smart Key System)
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Engine Immobilizer System (w/ Smart Key System).

Result





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test Engine Immobilizer System (w/ Smart Key System).

(b) Terminals of ECU Engine Immobilizer System (w/ Smart Key System).

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END