Toyota Corolla Cross: Terminals Of Ecm
TERMINALS OF ECM
HINT:
The standard normal voltage and resistance 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 and resistance 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)
|
Terminal Description
|
Condition
|
Specified Condition
|
|
A47-10 (E1) - Body ground
|
Ground
|
Always
|
Below 1 Ω
|
|
A47-1 (BATT) - A47-10 (E1)
|
Battery
(for measuring battery voltage and for ECM memory)
|
Always
|
11 to 14 V
|
|
C76-62 (LIN) - Body ground
|
LIN communication line
|
Ignition switch off
(while LIN communication stopped)
|
10 kΩ or higher
|
READ NEXT:
DIAGNOSIS SYSTEM
DLC3 (Data Link Connector 3)
(a) Check the DLC3.
Click here
BATTERY VOLTAGE
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, replace or recharge the battery.
FREEZE FRAME DATA
FREEZE FRAME DATA
(a) Enter the following menus.
Powertrain > Engine > Trouble Codes
(b) Select a DTC in order to display its freeze frame data.
(c) Check the freeze frame
FAIL-SAFE CHART
If the following DTC is stored, the ECM enters fail-safe mode to allow the vehicle
to be driven temporarily.
Charging System
DTC No.
Fail-safe Operation
SEE MORE:
DESCRIPTION
Problem Symptom Suspected Area
Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or i
TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY
(a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
(b) Reconnect the power distribution box assembly connector. (c) Measure the voltage and resi
