DESCRIPTION
This DTC is stored when the CAN communication system is malfunctioning.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
U023A |
Lost Communication with Front Camera Module |
Lost communication with forward recognition camera |
CAN communication system |
PROCEDURE
1. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > Main Body > Clear DTCs
|
2. |
CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Trouble Codes.
(e) Check for DTCs.
Body Electrical > Main Body > Trouble CodesOK:
DTC U023A is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK
|
NG | ![]() |
GO TO CAN COMMUNICATION SYSTEM
|
Toyota CH-R Service Manual > Immobiliser System(w/o Smart Key System): Theft Deterrent System Presence Detection (B279C)
DESCRIPTION
If an ECM that is incompatible with the immobiliser system is installed, the
ECM stores this DTC.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B279C
Theft Deterrent System Presence ...
Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 22 (CA2H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central
gateway ECU (network gateway ECU) and t ...