TERMINALS OF ECM
1. 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 |
|---|---|---|---|---|
|
E14-2 (BATT) - E11-1 (E1) |
L - W-B |
Battery (for measuring battery voltage and for ECM memory) |
Always |
11 to 14 V |
|
E11-1 (E1) - Body ground |
W-B - Body ground |
Ground circuit of ECM |
Always |
Below 1 Ω |
|
E9-34 (LIN) - Body ground |
L - Body ground |
LIN communication line |
Ignition switch off |
10 kΩ or higher |
Diagnosis System
Dtc Check / ClearVSC OFF Switch Circuit
DESCRIPTION
The skid control ECU assembly is connected to the combination meter assembly
via CAN communication.
Pressing the VSC OFF switch turns off TRAC operation, and pressing and holding
this switch turns off TRAC and VSC operation.
If TRAC and VSC operations are turned off, the TRAC OFF ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE MILLIMETER WAVE RADAR WIRE (w/ Toyota Safety Sense P)
Click here
2. REMOVE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Toyota Safety Sense P)
Click here
3. REMOVE NO. 1 RADIATOR GRILLE GARNISH
(a) When Replacing the No. 1 Radiator Grille Garnish:
(1) Apply p ...
Parts Location
PARTS LOCATION
ILLUSTRATION
*A
for Hydraulic Brake Booster
*B
for Vacuum Brake Booster
*C
for Automatic Transmission
*D
for Manual Transmission
*1
SKID CONTROL ECU (BRAKE ACT ...