INSPECTION
PROCEDURE
1. INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Check that the LED illuminates.
(1) Apply battery voltage to the multiplex network master switch assembly and check that the LED illuminates. OK:
If the result is not as specified, replace the multiplex network master switch assembly. |
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2. INSPECT DOOR CONTROL SWITCH ASSEMBLY
(a) Check the operation of the door control switch assembly.
(1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the door control switch assembly. |
|
(b) Check that the LED illuminates.
(1) Apply battery voltage to the multiplex network master switch assembly and check that the LED illuminates. OK:
If the result is not as specified, replace the door control switch assembly. |
|
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted
Air Conditioner Pressure Sensor): Lost Communication with ECM (U0100-U0142,U0155)
DESCRIPTION
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Memory
U0100
Lost Communication with ECM
No communication with ECM
CAN communication system
ECM
...
Toyota CH-R Service Manual > Can Communication System: Check Bus 1 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 23 (CA1H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 8 (CA1L) of the central
gateway ECU (network gateway ECU) and t ...