TERMINALS OF ECM
CHECK ECM
HINT:
The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
C63-59 (E1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
A38-1 (BATT) - C63-59 (E1) |
R - W-B |
Battery (for measuring battery voltage and for ECM memory) |
Always |
11 to 14 V |
|
C63-61 (LIN) - Body ground |
B - Body ground |
LIN communication line |
Ignition switch off (while LIN communication is stopped) |
10 kΩ or higher |
Problem Symptoms Table
Diagnosis SystemToyota CH-R Service Manual > Safety Connect System: Airbag Signal Malfunction/Not Input (B15C4)
DESCRIPTION
If the DCM (Telematics Transceiver) detects an error in communication between
the DCM (Telematics Transceiver) and the airbag sensor assembly as a result of the
DCM (Telematics Transceiver) self check, this DTC will be set.
DTC No.
Detection Item
DT ...
Toyota CH-R Service Manual > Navigation System: Extension Module Disconnected 2 (B1543)
DESCRIPTION
If the radio and display receiver assembly cannot detect the navigation ECU for
a certain period of time (90 seconds) after the engine switch is turned on (ACC)
and the radio and display receiver assembly confirms that the information is missing
by checking past navigation ECU rec ...