Toyota Corolla Cross: Terminals Of Ecu
TERMINALS OF ECU
|
*a |
Hybrid Vehicle Control ECU |
- |
- |
HINT:
The standard normal voltage between each pair of hybrid vehicle control ECU 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 hybrid vehicle control ECU terminal locations.
Hybrid Vehicle Control ECU|
Terminal No. (Symbol) |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|
|
A192-1 (HMCL) - I249-1 (E1) |
CAN communication signal |
Ignition switch ON |
Pulse generation (Waveform 1) |
|
A192-2 (HMCH) - I249-1 (E1) |
CAN communication signal |
Ignition switch ON |
Pulse generation (Waveform 1) |
|
A192-16 (LIN3) - I249-1 (E1) |
LIN communication signal |
Ignition switch ON (READY) |
Pulse generation |
|
I249-10 (MREL) - I249-1 (E1) |
IGCT-MAIN NO. 1 relay |
Ignition switch ON |
11 to 14 V |
(a) Oscilloscope waveforms
HINT:
Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.
(1) Waveform 1 (CAN communication signal)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: A192-2 (HMCH) - I249-1 (E1) CH2: A192-1 (HMCL) - I249-1 (E1) |
|
Equipment Setting |
1 V/DIV., 50 μs./DIV. |
|
Condition |
Ignition switch ON |
HINT:
The waveform will vary depending on the content of the digital communication (digital signal).
READ NEXT:
Diagnosis System
DIAGNOSIS SYSTEM
DLC3 (Data Link Connector 3)
(a) Check the DLC3.
Click here
AUXILIARY BATTERY VOLTAGE
Standard Voltage:
Switch Condition
Specified Condition
Freeze Frame Data
FREEZE FRAME DATA
FREEZE FRAME DATA
Refer to Hybrid Control System.
Click here
Fail-safe Chart
FAIL-SAFE CHART
If any of the following DTCs are stored, the hybrid vehicle control ECU enters
fail-safe mode to allow the vehicle to be driven temporarily.
Charging System
DTC No.
SEE MORE:
Inspection
INSPECTION
PROCEDURE
1. INSPECT REAR CENTER ULTRASONIC SENSOR (for LH Side)
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the
table below.
Standard Resistance:
Tester Connection
Condition
Hybrid Vehicle Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Hybrid Vehicle Control ECU Communication Stop Mode
Communication stop for "Hybrid Vehicle Control" is indicated on the "Communication
Bus Check" screen of the GTS.
