REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during the No. 1 integration relay removal/installation are shown below.
Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure |
Necessary Procedure |
Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
---|---|---|---|
Disconnect cable from negative battery terminal |
Initialize back door lock |
Power door lock control system |
|
Memorize steering angle neutral point |
Lane departure alert system (w/ Steering Control) |
|
|
Pre-collision system |
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
Click here
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Click here
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
Click here
3. REMOVE NO. 1 RELAY BLOCK COVER
(a) Disengage the claws to remove the No. 1 relay block cover as shown in the illustration.
Remove in this Direction |
4. REMOVE NO. 1 INTEGRATION RELAY
(a) Using a screwdriver with its tip wrapped in protective tape, disengage the claws.
*a |
Protective Tape |
Remove in this Direction |
(b) Pull up the No. 1 integration relay as shown in the illustration.
NOTICE:
When pulling the No. 1 integration relay, take care not to damage it.
(c) Disconnect the 2 connectors to remove the No. 1 integration relay. NOTICE: When pulling the No. 1 integration relay, take care not to damage it. |
|
Toyota CH-R Service Manual > Lin Communication System: Lost Communication with Power Source Control (B278C)
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart
key ECU assembly) and power management control ECU stops for 10 seconds or more.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B27 ...
Toyota CH-R Service Manual > Meter / Gauge System: Lost Communication with ECM / PCM "A" (U0100,U0129,U0131,U0142,U0151,U0182,U0235,U023A)
DESCRIPTION
The combination meter assembly communicates with the ECM, brake actuator assembly
(skid control ECU), power steering ECU assembly, main body ECU (multiplex network
body ECU), airbag sensor assembly, headlight control ECU sub-assembly LH*1, front
camera module*2, millimeter wave ra ...