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:
Radio Antenna
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE ROOF HEADLINING ASSEMBLY (for Double Cab)
(See page )
2. REMOVE ROOF HEADLINING ASSEMBLY (for Access Cab)
(See page )
3. REMOVE ANTENNA ASSEMBLY WITH HOLDER
(a) Disengage the 3 clamps.
(b) Remove the nut.
...
Components
COMPONENTS
ILLUSTRATION
*1
INSTRUMENT LOWER PANEL ASSEMBLY
*2
INSTRUMENT PANEL LOWER CENTER FINISH PANEL
*3
NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY
*4
REAR NO. 2 POWER WINDOW REGULATOR SWITCH ASSEMB ...
Parts Location
PARTS LOCATION
ILLUSTRATION
*A
w/ Fog Light
*B
w/ Automatic High Beam System
*C
for Manual Transmission
-
-
*1
HEADLIGHT ASSEMBLY LH
*2
HEADLIGHT ASSEMB ...
