Use these procedures to troubleshoot the engine immobiliser system.
*: Use the intelligent tester.
VEHICLE BROUGHT TO WORKSHOP
INSPECT BATTERY VOLTAGE
Standard voltage |
---|
11 to 14 V |
If the voltage is below 11 V, recharge or replace the battery before proceeding.
INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
Use the intelligent tester to check if the LIN communication system is functioning normally.
Result | Proceed to |
---|---|
LIN DTC is not output | A |
LIN DTC is output | B |
CHECK FOR DTC*
Check for DTCs and make a note of any codes that are output (Click here).
Clear the DTCs (Click here).
Recheck for DTCs (Click here). Based on the DTCs output above, try to cause the output of the same ECD system, SFI system, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.
Result | Proceed to |
---|---|
DTC is not output | A |
ECD system (for 1AD-FTV [for CCo]) DTC is output | B |
ECD system (for 1AD-FTV [for DPF]) DTC is output | C |
ECD system (for 2AD-FHV) DTC is output | D |
SFI system (for 1ZR-FAE) DTC is output | E |
SFI system (for 2ZR-FAE) DTC is output | F |
Steering lock system DTC is output | G |
Engine immobiliser system DTC is output | H |
PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table (Click here).
Result | Proceed to |
---|---|
Fault is not listed in problem symptoms table | A |
Fault is listed in problem symptoms table | B |
OVERALL ANALYSIS AND TROUBLESHOOTING*
Data List / Active Test (Click here).
Terminals of ECU (Click here).
ADJUST, REPAIR OR REPLACE
CONFIRMATION TEST