Toyota Tacoma 2015-2018 Service Manual: IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the air conditioning amplifier assembly when the ignition switch is turned to ON.
The power is used for operating the air conditioning amplifier assembly, servo motors, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - IG POWER SOURCE) |
(a) Disconnect the A36 air conditioning amplifier assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A36-1 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
|
A36-1 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Disconnect the A36 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A36-10 (GND) - Body ground |
Always |
Below 1 Ω |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Blower Motor Circuit
DESCRIPTION
The blower motor with fan sub-assembly operates according to signals from the
air conditioning amplifier assembly. The blower motor with fan sub-assembly speed
signals are transmitted ...
PTC Heater Circuit
DESCRIPTION
PTC HTR heater relays are closed in accordance with signals from the air conditioning
amplifier assembly and power is supplied to the quick heater assembly installed
on the radiator h ...
Other materials:
Auto Down Operation does not Fully Open Power Window (Catch Protection Function
is Activated)
DESCRIPTION
If a front door glass or the power window regulator motor assembly (for driver
door) or power window regulator motor assembly (front passenger door) does not operate
smoothly, the catch protection function may be triggered automatically, resulting
in the auto down operation being ...
Clutch Master Cylinder
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL CLUTCH MASTER CYLINDER ASSEMBLY
(a) Install the clutch master cylinder assembly to the clutch pedal support with
the 2 bolts.
Torque:
12 N·m {120 kgf·cm, 9 ft·lbf}
(b) Install the clutch start swi ...
Blind Spot Monitor Slave Module (C1AB7)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH detects an internal
malfunction.
DTC Code
DTC Detection Condition
Trouble Area
C1AB7
The blind spot monitor sensor RH (slave) detects an internal malfunction.
...