How To Proceed With Troubleshooting

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT: Use these procedures to troubleshoot the engine immobiliser system.
*: Use 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. CRANK ENGINE FOR MORE THAN 10 SECONDS
NEXT -- Continue to next step.
4. CHECK FOR DTC*
(a) Check for DTCs and make a note of any codes that are output Reading and Clearing Diagnostic Trouble Codes.
(b) Clear the DTC.
(c) Recheck for DTCs. Based on the DTC output above, try to cause the output of the same SFI system DTC or engine immobiliser system DTC by simulating the original activity indicated by the DTC.

Result:





B -- Go to SFI SYSTEM
D -- Go to step 7
A -- Continue to next step.
5. PROBLEM SYMPTOMS TABLE

Result:





B -- Go to step 7
A -- Continue to next step.
6. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) DATA LIST / ACTIVE TEST Scan Tool Testing and Procedures

(b) Terminals of ECU Pinout Values and Diagnostic Parameters

(c) Inspection Testing and Inspection

NEXT -- Continue to next step.
7. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END