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
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
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
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:
ECU Power Source Circuit
DESCRIPTION If the ignition switch is ON, the battery ECU assembly applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the IGCT terminals. WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION: Refer to the precautions before inspecting high voltage circuit.
Cli
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FRONT LOWER BALL JOINT ASSEMBLY
(a) Check for looseness.
(1) Lift up the vehicle.
(2) Move the front lower No. 1 suspension arm sub-assembly up and down
by hand with a force of 294 N (30 kgf) or more to check that there is no
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