DESCRIPTION
The immobiliser system compares the ID code that is registered to the certification ECU (smart key ECU assembly) with the ID code of the transponder chip that is embedded in the electrical key transmitter sub-assembly.
WIRING DIAGRAM
Refer to B2799.
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CAUTION / NOTICE / HINT
NOTICE:
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HINT:
If an immobiliser system or SFI system DTC is output, first perform troubleshooting for the immobiliser system or SFI system DTC.
PROCEDURE
1. |
CHECK FOR DTC |
(a) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B | ![]() |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
2. |
CHECK WHETHER ENGINE STARTS |
(a) Check that the engine starts 5 seconds after the engine switch turned on (IG).
OK:
Engine starts normally.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILISER CODE ECU) - ECM) |
(a) Disconnect the F21 ID code box (immobiliser code ECU) connector.
(b) Disconnect the A38 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F21-3 (EFII) - A38-45 (IMO) |
Always |
Below 1 Ω |
F21-4 (EFIO) - A38-28 (IMI) |
Always |
Below 1 Ω |
F21-3 (EFII) or A38-45 (IMO) - Body ground |
Always |
10 kΩ or higher |
F21-4 (EFIO) or A38-28 (IMI) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID code.
Click here
|
5. |
CHECK WHETHER ENGINE STARTS |
(a) Check that the engine starts.
OK:
Engine starts normally.
OK | ![]() |
END (COMMUNICATION ID REGISTRATION WAS DEFECTIVE) |
|
6. |
REPLACE ID CODE BOX (IMMOBILISER CODE ECU) |
(a) Replace the ID code box (immobiliser code ECU) with a new one.
Click here
|
7. |
REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID code.
Click here
|
8. |
CHECK WHETHER ENGINE STARTS |
(a) Check that the engine starts.
OK:
Engine starts normally.
Result |
Proceed to |
---|---|
OK |
A |
NG (w/o Canister Pump Module) |
B |
NG (w/ Canister Pump Module) |
C |
A | ![]() |
END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE) |
B | ![]() |
GO TO SFI SYSTEM |
C | ![]() |
GO TO SFI SYSTEM |
Toyota CH-R Service Manual > Vehicle Stability Control System: Test Mode Procedure
TEST MODE PROCEDURE
WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) When the ignition switch is turned to ON, check that the ABS warning light,
brake system warning light (red indicator), VSC OFF indicator light, multi-information
display (TRAC OFF message) (for Color TFT Type), TRAC OFF i ...
Toyota CH-R Owners Manual > Multi-information display: Settings display
The settings of the following items can be changed.
For functions that can be enabled or disabled, the function switches between
on and off each time
is
pressed.
LDA (Lane Departure Alert)
Select to set up the following items.
Steering Assist on/off
Alert sensitivity
...