Toyota Corolla Cross: Terminals Of Ecu
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 resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connectors connected.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
MB-13 (GND1) - Body ground |
Ground | Always |
Below 1 Ω |
|
MB-14 (GND2) - Body ground |
Ground | Always |
Below 1 Ω |
|
MB-26 (BECU) - Body ground |
Auxiliary battery power supply |
Ignition switch off | 11 to 14 V |
|
MB-27 (IGR) - Body ground |
IG power supply | Ignition switch ON |
11 to 14 V |
(d) Install the main body ECU (multiplex network body ECU) to power distribution box assembly.
(e) Measure the voltage and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
8F-3 (FLCY) - Body ground |
Front door courtesy light switch (LH) input |
Front door LH open | Below 1 V |
|
Front door LH closed |
11 to 14 V | ||
|
I85-16 (KSW) - Body ground |
Un-lock warning switch input |
No key in ignition key cylinder |
11 to 14 V |
|
Key in ignition key cylinder |
Below 1 V |
READ NEXT:
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whethe
Key Reminder Buzzer does not Sound
DESCRIPTION The key reminder warning buzzer sounds when the driver door is opened while the ignition switch is off or ACC. The key reminder warning buzzer is activated when the main body ECU (multiple
SEE MORE:
Different Diameter Tire (C134800)
DESCRIPTION If the hybrid vehicle control ECU receives a signal from the skid control ECU that the AWD system is malfunctioning, the hybrid vehicle control ECU outputs this DTC.
DTC No. Detection Item
DTC Detection Condition
Trouble Area MIL
Warning Indicate Note
Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery (P0A6912,...,P0A6C1F)
DESCRIPTION The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if it detects a malfunction.
DTC No. Detection Item
DTC Detection Condition
Trouble Area MIL
Warning Indica
