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:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART If a DTC is displayed during the DTC check, check the circuit listed for the DTC in the table below (refer to the appropriate page). HINT: When the SRS warning light remains on and the normal system code is output, a decrease in the source voltage is li ...

Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly*1 or navigation receiver assembly*2 detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly ...

Portable Player cannot be Connected Manually/Automatically
CAUTION / NOTICE / HINT HINT: Some versions of "Bluetooth" compatible audio players may not function, or the function may be limited using the navigation receiver assembly, even if the portable audio player itself can play files (See page ). PROCEDURE 1. CHE ...

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