Toyota Tacoma (2015-2018) Service Manual: Clearance Warning ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the clearance warning ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuse for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE) |
(a) Disconnect the C30 connector from the clearance warning ECU assembly.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C30-1 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
C30-1 (IG) - Body ground |
Ignition switch off |
Below 1 V |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C30-30 (E) - Body ground |
Always |
Below 1 Ω |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Clearance Warning Buzzer Circuit
DESCRIPTION
This circuit consists of the No. 1 clearance warning buzzer and clearance warning
ECU assembly. An ECU-excited type buzzer is used. The battery voltage supplied through
the buzzer is ...
Rear Cross Traffic Alert Buzzer
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL REAR CROSS TRAFFIC ALERT BUZZER
(a) Engage the clamp to install the rear cross traffic alert buzzer.
(b) ...
Other materials:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Charging System
Symptom
Suspected Area
See page
Charging System Warning Displayed
Battery
Generator assembly
Charging system (ON-VEHICLE INSPECTION)
...
Removal
REMOVAL
PROCEDURE
1. DRAIN TRANSFER OIL
2. REMOVE FRONT PROPELLER SHAFT ASSEMBLY
3. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY
4. SUPPORT TRANSMISSION ASSEMBLY
5. REMOVE NO. 3 FRAME CROSSMEMBER SUB-ASSEMBLY
6. REMOVE REAR NO. 1 ENGINE MOUNTING INSULATOR
7. SUPPO ...
Ambient Temperature Sensor Circuit (B1412)
DESCRIPTION
The ambient temperature sensor is installed in front of the condenser to detect
the ambient temperature which is used to control the air conditioning system AUTO
mode. This sensor is connected to the air conditioning amplifier assembly and detects
fluctuations in the ambient tempe ...
