Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK
(a) Remove the main body ECU (multiplex network body ECU) from the driver side
junction block (See page .gif)
).
(b) Disconnect the 1D driver side junction block connector.
(c) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
MB-11 (GND1) - Body ground |
None - Body ground |
Ground |
Always |
Below 1 Ω |
|
MB-31 (BECU) - Body ground |
None - Body ground |
Battery power supply |
Always |
11 to 14 V |
|
MB-30 (ACC) - Body ground |
None - Body ground |
ACC power supply |
Ignition switch ON(ACC) |
11 to 14 V |
|
MB-32 (IG) - Body ground |
None - Body ground |
Ignition switch power supply |
Ignition switch ON(IG) |
11 to 14 V |
|
1D-31 (KSW) - Body ground |
G - Body ground |
Unlock warning switch input |
No Key in ignition key cylinder (off) |
10 kΩ or higher |
|
Key inserted ignition key cylinder (on) |
Below 1 Ω |
(d) Install the main body ECU (multiplex network body ECU) to the driver side
junction block (See page ).
(e) Reconnect the 1D driver side junction block connector.
(f) Measure the voltage and check for pulse according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
M6-6 (FLCY) - Body ground |
Y - Body ground |
Front door LH courtesy light switch input |
Front door LH open |
Below 1 V |
|
Front door LH closed |
Pulse generation |
|||
|
1D-31 (KSW) - Body ground |
G - Body ground |
Unlock warning switch input |
No Key in ignition key cylinder (off) |
11 to 14 V |
|
Key inserted ignition key cylinder (on) |
Below 1 V |
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, replace t ...
Key Reminder Buzzer does not Sound
DESCRIPTION
The key reminder warning buzzer sounds when the driver side door is opened while
the ignition switch is in the LOCK or ACC positions. The key reminder warning buzzer
is activated when ...
Other materials:
Automatic Disconnecting Differential Motor Control Circuit Open (P17A0)
DESCRIPTION
This DTC is output when an open circuit in the A.D.D. shift motor drive circuit
is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17A0
Automatic Disconnecting Differential Motor Control Ci ...
Noise Filter(for 2gr-fks)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
2. REMOVE V-BANK COVER
(See page )
3. REMOVE AIR CLEANER ASSEMBLY
(See page )
4. REMOVE RADIO SETTING CONDENSER
(a) Disconnect the connector.
(b) Remove the tape an ...
Back-up Light Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT BACK-UP LIGHT SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Pushed
...