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:
Rear Power Outlet Socket
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL POWER OUTLET SOCKET ASSEMBLY
(a) Install the clamp.
(b) Connect the connector.
(c) Using a torx socket wrench T30, install the 4 screws and the power
outlet socket assemb ...
Front Differential Oil Temperature Sensor Circuit Low (P17C7)
DESCRIPTION
This DTC is output when a short to ground in the oil temperature sensor is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
P17C7
Front Differential Oil Temperature Sensor Circuit Low
...
Installation
INSTALLATION
PROCEDURE
1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(a) Install a new gasket to the water inlet with thermostat sub-assembly.
(b) Install the water inlet with thermostat sub-assembly to the timing chain
cover assembly with the 2 bolts and nut.
Torque:
10 N·m {102 kgf ...
