Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT AIR CONDITIONING CONTROL ASSEMBLY

(a) Check the blower switch resistance.

(1) Measure the resistance according to the value(s) in the table below.

Text in Illustration

*a

Component without harness connected

(Air Conditioning control assembly)

*b

Blower Switch OFF Position

*c

Blower Switch LO Position

*d

Blower Switch M1 Position

*e

*Blower Switch M2 Position

*f

Blower Switch Hi Position

Standard Resistance:

Tester Connection

Blower Switch Position

Specified Condition

2 (LO) - 3 (HI) - 4 (M2) - 6 (BGND) - 7(M1)

Blower switch: OFF

10 KΩ or higher

2 (LO) - 6 (BGND)

Blower switch: LO

Below 1 Ω

2 (LO) - 6 (BGND) - 7 (M1)

Blower switch: M1

Below 1 Ω

2 (LO) - 4 (M2) - 6 (BGND)

Blower switch: M2

Below 1 Ω

2 (LO) - 3 (HI) - 6 (BGND)

Blower switch: HI

Below 1 Ω

If the result is not as specified, replace the air conditioning control assembly.

(b) Check the operation.

(1) Apply battery voltage across terminals 14 (IG+) and 1 (GND).

(2) Connect the positive (+) tester probe of a voltmeter to terminal 2 (AMSW) and negative (-) tester probe to terminal 1 (GND), then check the voltage.

Text in Illustration

*a

Component without harness connected

(Air Conditioning control assembly)

*b

0° (MAX A/C)

*c

120°

*d

240° (MAX HOT)

Standard Voltage:

Angle (Position)

Specified Condition

0° (MAX A/C)

0 to 0.4 V

120°

6.3 to 7.2 V

240° (MAX HOT)

13 to 13.5 V

If the result is not as specified, replace the air conditioning control assembly.

(c) Check the operation.

(1) Apply battery voltage across terminals 14 (IG+) and 1 (GND).

(2) Connect the positive (+) tester probe of a voltmeter to terminal 3 (MSET) and negative (-) tester probe to terminal 1 (GND), then check the voltage.

Text in Illustration

*a

Component without harness connected

(Air Conditioning control assembly)

*b

DEF

*c

FACE

*d

B/L

*e

*FOOT

*f

FOOT/DEF

Standard Voltage:

Angle (Position)

Specified Condition

0° (FACE)

13.3 to 13.5 V

60° (B/L)

10.1 to 11.0 V

120° (FOOT)

6.3 to 7.2 V

180° (FOOT/DEF)

2.5 to 3.4 V

240° (DEF)

0 to 0.2 V

If the result is not as specified, replace the air conditioning control assembly.

(d) Inspect the illumination.

(1) Connect the positive (+) lead to terminal 6 (ILL+) and negative (-) lead to terminal 9 (ILL-), and check that the illuminations comes on.

OK:

Illuminations comes on.

If the result is not as specified, replace the air conditioning control assembly.

Components
COMPONENTS ILLUSTRATION *A w/o Navigation System *B w/ Navigation System *C for Double Cab *D for Acce ...

Installation
INSTALLATION PROCEDURE 1. INSTALL TRANSFER POSITION SWITCH (for 4WD) Click here 2. INSTALL ENGINE SWITCH Click here 3. INSTALL AIR CONDITIONING CONTROL ASSEMBLY (a) Connect the connectors. ...

Other materials:

Removal
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing (See page ). NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION (a) Air conditioning system data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform troubleshooting. ...

Pressure Sensor or Switch (C1254)
DESCRIPTION The accumulator pressure sensor is connected to the skid control ECU in the master cylinder solenoid. DTC No. DTC Detecting Condition Trouble Areas C1254 Accumulator pressure sensor fault (Fluid pressure does not chang ...

© 2011-2020 Copyright www.ttguide.net