Toyota Tundra (2015 year). Manual — part 2286

OK

NG

REPLACE BLOWER MOTOR

5.

CHECK AIR CONDITIONING AMPLIFIER (BLW VOLTAGE)

(a) Remove the air conditioning amplifier with its connectors

still connected

.

(b) Turn the ignition switch ON.

(c) Turn the blower switch LO.

(d) Using an oscilloscope, check the waveform.

Standard:

TESTER

CONNECTION

TOOL SETTING

SWITCH

CONDITION

SPECIFIED

CONDITION

J19-23 (BLW) -

J19-14 (GND)

1 V/DIV., 500

µsec./DIV.

Ignition switch

ON

Blower switch

LO

Pulse

generation

HINT:

Waveform varies with the blower level.

NG

REPLACE AIR CONDITIONING AMPLIFIER

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN

IN PROBLEM SYMPTOMS TABLE

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

OK

Last Modified: 9-16-2014

6.6 J

Doc ID: RM000002VXL00VX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): ECU Power

Source Circuit; 2015 MY Tundra [08/2014 - ]

ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the air conditioning amplifier.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSE (A/C)

(a) Remove the A/C fuse from the main body ECU.

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

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

A/C fuse

Always

Below 1 Ω

NG

REPLACE FUSE

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

2.

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY
AND BODY GROUND)

(a) Disconnect the J19 air conditioning amplifier connector.

(b) Measure the resistance and voltage according to the

value(s) in the table below.

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J19-14 (GND) - Body ground

Always

Below 1 Ω

Standard voltage:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J19-21 (B) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN

IN PROBLEM SYMPTOMS TABLE

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...

Last Modified: 9-16-2014

6.6 J

Doc ID: RM000002VXQ01GX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): Air Conditioning

Compressor Magnetic Clutch Circuit; 2015 MY Tundra [08/2014 - ]

Air Conditioning Compressor Magnetic Clutch Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

READ VALUE USING TECHSTREAM (A/C SIGNAL)

AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air...