How To Proceed With Troubleshooting

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM (w/o Smart Key System): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
Use this procedure to troubleshoot the engine immobiliser system.

Techstream should be used in steps 3, 4, and 6.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CRANK ENGINE FOR MORE THAN 10 SECONDS

NEXT -- Continue to next step.

3. CHECK FOR DTCS

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

(b) Delete the DTCs.

(c) Recheck for DTCs. Try to duplicate the DTC (SFI system and engine immobiliser system) by simulating the symptoms indicated by the DTC.

(1) If the DTC does not reoccur, proceed to A.

(2) If the DTC (SFI system) reoccurs, proceed to B.

(3) If the DTC (engine immobiliser system) reoccurs, proceed to C.

B -- GO TO SFI SYSTEM

C -- GO TO DTC CHART
A -- Continue to next step.

4. READ VALUE ON TECHSTREAM

(a) Connect Techstream to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Turn the tester on.

(d) Enter the following menus: Body Electrical / Immobiliser / Data List.

(e) Read the Data List according to the display on the tester.

Immobiliser:





OK:

ON (Key is in ignition key cylinder) appears on the screen.

NG -- GO TO DTC B2780
OK -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) If the fault is not listed on the problem symptoms table, proceed to A.

(b) If the fault is listed on the problem symptoms table, proceed to B.

B -- GO TO STEP 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) DATA LIST / ACTIVE TEST Engine Immobiliser System (w/o Smart Key System).

(b) TERMINALS OF ECU Engine Immobiliser System (w/o Smart Key System).

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END