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 > Smart Key System(for Start Function): System Voltage or GND Energization Malfunction (B228B)
DESCRIPTION
This DTC is stored when there is a malfunction in the certification ECU (smart
key ECU assembly) battery power supply circuit or ground circuit.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B2 ...
Toyota CH-R Service Manual > Lighting (int): Vanity Light Switch
Components
COMPONENTS
ILLUSTRATION
*1
VISOR ASSEMBLY
*2
VISOR BRACKET COVER
Inspection
INSPECTION
PROCEDURE
1. INSPECT VISOR ASSEMBLY LH
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in ...