Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting

Toyota Tacoma (2015-2018) Service Manual / Air Conditioning / Air Conditioning System(for Manual Air Conditioning System) / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the air conditioning system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

(a) Inspect the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

3.	CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result	Proceed to
CAN DTCs is not output	A
CAN DTCs is output	B

GO TO CAN COMMUNICATION SYSTEM

4.	CHECK FOR DTC*

(a) Check for DTCs and note any code that is output.

(b) Clear the DTCs.

(c) Recheck for DTCs. Based on the DTCs output above, try to force the air conditioning system to output DTCs by simulating the conditions indicated by the DTC.

Result	Proceed to
DTCs is not output	A
DTCs is output	B

GO TO DIAGNOSTIC TROUBLE CODE CHART

5.	PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

6.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here (b) Terminals of ECU

(b) Terminals of ECU

Click here (c) On-vehicle Inspection

(d) Inspection

7.	ADJUST, REPAIR OR REPLACE

END

Precaution

PRECAUTION 1. EXPRESSIONS OF IGNITION SWITCH HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below ...

System Description

SYSTEM DESCRIPTION 1. GENERAL (a) The air conditioning system has the following controls. Control Outline Manual Control The air conditioner amplif ...

Other materials:

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT NO. 2 EXHAUST PIPE ASSEMBLY (for 2GR-FKS) 2. REMOVE PROPELLER SHAFT HEAT INSULATOR BRACKET SUB-ASSEMBLY (a) Remove the 2 bolts and propeller shaft heat insulator bracket. 3. REMOVE FRONT PROPELLER SHAFT ASSEMBLY (a) Place matchmarks on the propeller sh ...

Installation
INSTALLATION PROCEDURE 1. INSTALL RADIATOR ASSEMBLY (a) Engage the 2 hooks and temporarily install the radiator assembly to the radiator support sub-assembly. (b) Install the radiator assembly with the 4 bolts. Torque: 18 N·m {184 kgf·cm, 13 ft·lbf} 2. INSTALL FAN SHROUD (a) Install th ...

Open in ABS Solenoid Relay Circuit (C146E,C146F)
DESCRIPTION The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid. The solenoid relay is turned on 1.5 seconds after the ignition switch is turned ON, and is turned off if an open or short in the solenoid is detected by the self diagnosis performed when the engine starts ...