DIAGNOSIS SYSTEM
DESCRIPTION
(a) The certification ECU (smart key ECU assembly) and ECM control the vehicle immobiliser system functions. Immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3).
In some cases, a malfunction may be occurring in the immobiliser system even though the security indicator light is not illuminated.
When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
START FUNCTION PROBLEM SYMPTOMS
Symptom |
Suspected Area |
Component Malfunction |
Possible Output DTCs |
Related Data List Item |
---|---|---|---|---|
Engine cannot be started*1 |
Certification ECU (smart key ECU assembly) |
Open or short circuit inside ECU |
|
|
Engine cannot be started*1 |
ID code box (immobiliser code ECU) |
Open or short circuit inside ECU |
|
|
ECM |
Open or short circuit inside ECU |
|
EFI Code Receive |
|
SFI system |
ECM incompatible with installed immobiliser system |
B279C |
|
|
Power source mode cannot be changed*1 |
Engine switch |
Open or short circuit inside switch |
B278A |
|
Certification ECU (smart key ECU assembly) |
Open or short circuit inside ECU |
|
|
|
Steering lock lock/unlock not possible*2 |
Steering lock ECU (steering lock actuator or upper bracket assembly) |
|
|
|
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Toyota CH-R Service Manual > Rear Console Box: Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL CONSOLE COMPARTMENT DOOR SUB-ASSEMBLY
(a) Engage the guides to install the console compartment door sub-assembly.
(b) Install the 4 screws.
2. INSTALL NO. 2 BOX SIDE PANEL
(a) Engage the guides and claws ...
Toyota CH-R Service Manual > Vehicle Stability Control System: Performance Decline of Brake Function (C1441)
DESCRIPTION
The skid control ECU judges brake failure conditions have occurred based on signals
from the brake pedal load sensing switch and master cylinder pressure sensor.
NOTICE:
Do not intentionally stop the engine when driving. Even when no malfunction has
occurred in the brake system, D ...