Toyota Tacoma (2015-2018) Service Manual: Back-up Power Source Circuit
DESCRIPTION
The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even when the ignition switch is off. The power is used for diagnostic trouble code memory, 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 - BATTERY) |
(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 |
Condition |
Specified Condition |
|---|---|---|
|
A36-17 (B) - Body ground |
Always |
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 |
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:
A-TRAC Indicator Light does not Come ON
DESCRIPTION
The A-TRAC does not operate even if the A-TRAC switch is pressed under the following
conditions:
The TRAC or VSC system is faulty.
The temperature inside the hydraulic brake booster increases and the
A-TRAC operation is suspended.
WIRING DIAGRAM
Refer to A-TRAC ...
Glossary Of Sae And Toyota Terms
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual
in compliance with SAE recommendations, as well as their TOYOTA equivalents.
SAE ABBREVIATIONS
SAE TERMS
TOYOTA TERMS ( )-ABBREVIATIONS
...
Noise Filter(for 2tr-fe)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
2. REMOVE AIR CLEANER ASSEMBLY
(See page )
3. REMOVE RADIO SETTING CONDENSER
(a) Disconnect the connector.
(b) Remove the tape and the radio setting condenser.
Instal ...
