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 > Wireless Door Lock Control System(w/ Smart Key System): Wireless Door Lock Tuner Circuit Malfunction (B1242)
DESCRIPTION
The electrical key and TPMS receiver assembly is used to receive radio waves
related to the entry functions of the electrical key transmitter sub-assembly. The
certification ECU (smart key ECU assembly) decodes the requested electrical key
transmitter sub-assembly operation by ide ...
Toyota CH-R Service Manual > Lin Communication System: Driver Side Door ECU Communication Stop (B2321)
DESCRIPTION
This DTC is stored when LIN communication between the power window regulator
motor assembly (for driver door) and main body ECU (multiplex network body ECU)
stops for 10 seconds or more.
DTC No.
Detection Item
DTC Detection Condition
Trou ...