IMMOBILISER SYSTEM(w/ Entry and Start System)
| DTC Code | DTC Name |
|---|---|
| HOW TO PROCEED WITH TROUBLESHOOTING |
CAUTION / NOTICE / HINT
Use the following procedure to troubleshoot the immobiliser system.
*: Use the GTS.
PROCEDURE
VEHICLE BROUGHT TO WORKSHOP
Result
Proceed to
NEXT
CUSTOMER PROBLEM ANALYSIS
Tip:In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
The following 5 items are important points for problem analysis:
What
Vehicle model, system name
When
Date, time, occurrence frequency
Where
Whether the problem occurs at a specific location
Under what conditions?
Whether the doors were locked or unlocked, whether the engine switch was on, whether the engine was running
How did it happen?
Problem symptoms
Result
Proceed to
NEXT
INSPECT BATTERY VOLTAGE
Measure the battery voltage.
Standard Voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
Tip:A simple method to determine whether the battery is discharged is to operate the horn.
Result
Proceed to
NEXT
TURN ENGINE SWITCH ON (IG)
Note:When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
Result
Proceed to
NEXT
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
Using the GTS, check for CAN communication system DTCs.
Result
Result
Proceed to
CAN DTCs are not output
A
CAN DTCs are output
B
CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
Using the GTS, check for LIN communication system DTCs.
Result
Result
Proceed to
LIN DTCs are not output
A
LIN DTCs are output
B
CHECK FOR DTC*
Check for DTCs and make a note of any codes that are output.
Body Electrical > Entry&Start > Trouble Codes
Powertrain > Engine and ECT > Trouble Codes
Based on the DTCs output above, proceed to each diagnostic procedure.
Result
Result
Proceed to
DTCs are not output
A
SFI system DTCs are output
B
Steering lock system DTCs are output
C
Immobiliser system DTCs are output
D
PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table.
Result
Result
Proceed to
Fault is not listed in Problem Symptoms Table
A
Fault is listed in Problem Symptoms Table
B
B REPAIR OR REPLACEClick here
OVERALL ANALYSIS AND TROUBLESHOOTING*
Data List / Active Test
Terminals of ECU
Result
Proceed to
NEXT
REPAIR OR REPLACE
Tip:If the Certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU)*, steering lock ECU (steering lock actuator assembly), ECM or electrical key transmitter sub-assembly are replaced, refer to Service Bulletin.
*: for RHD
Result
Proceed to
NEXT
CHECK FOR DTC*
Clear the DTCs.
Body Electrical > Entry&Start > Clear DTCs
Powertrain > Engine and ECT > Clear DTCs
Check for DTCs.
Body Electrical > Entry&Start > Trouble Codes
Powertrain > Engine and ECT > Trouble Codes
Tip:Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.
Result
Result
Proceed to
DTCs are not output
A
Immobiliser system DTCs are output
B
A END