Toyota Tacoma 2015-2018 Service Manual: Air Inlet Damper Position Sensor Circuit (B1432/32)

Toyota Tacoma 2015-2018 Service Manual / Air Conditioning / Air Conditioning System(for Automatic Air Conditioning System) / Air Inlet Damper Position Sensor Circuit (B1432/32)

DESCRIPTION

This sensor detects the position of the air inlet damper and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is built into the No. 1 air conditioning servo assembly (fresh/recirculation damper).

DTC No.	DTC Detection Condition	Trouble Area
B1432/32	Short to ground or power source circuit air inlet damper position sensor circuit.	No. 1 air conditioning servo assembly (fresh/recirculation damper) Harness or connector Air conditioning amplifier assembly

WIRING DIAGRAM

PROCEDURE

1.	READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Operate the recirculation/fresh switch.

(e) Enter the following menus: Body Electrical / Air Conditioner / Data List.

(f) Check the value(s) by referring to the table below.

Air Conditioner

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Air Inlet Damper Position	Air inlet damper servo motor actual position / Air inlet damper servo motor actual position / Min.: -14.0% Max.: 113.5%	FRESH: 0.0% RECIRCULATION: 100.0%	-
Air Inlet Damper Target	Air inlet damper servo motor target position / Min.: -14.0% Max.: 113.5%	FRESH: 0.0% RECIRCULATION: 100.0%	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Air Inlet Damper Position

Air inlet damper servo motor actual position /

Air inlet damper servo motor actual position / Min.: -14.0%

Max.: 113.5%

FRESH: 0.0%

RECIRCULATION: 100.0%

Air Inlet Damper Target

Air inlet damper servo motor target position /

Min.: -14.0%

Max.: 113.5%

FRESH: 0.0%

RECIRCULATION: 100.0%

OK:

The display is as specified in the Normal Condition column.

Result	Proceed to
NG	A
OK (When troubleshooting according to Problem Symptoms Table)	B
OK (When troubleshooting according to the DTC)	C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

2.	INSPECT NO. 1 AIR CONDITIONING SERVO ASSEMBLY (FRESH/RECIRCULATION DAMPER)

(a) Remove the No. 1 air conditioning servo assembly (fresh/recirculation damper) (See page (b) Inspect the No. 1 air conditioning servo assembly (fresh/recirculation damper) ).

(b) Inspect the No. 1 air conditioning servo assembly (fresh/recirculation damper) (See page ).

REPLACE NO. 1 AIR CONDITIONING SERVO ASSEMBLY (FRESH/RECIRCULATION DAMPER)

3.	CHECK HARNESS AND CONNECTOR (NO. 1 AIR CONDITIONING SERVO ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY)

(a) Disconnect the D29 No. 1 air conditioning servo assembly (fresh/recirculation damper) connector.

(b) Disconnect the A35 and A36 air conditioning amplifier assembly connectors.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D29-1 (SG) - A36-13 (S5-2)	Always	Below 1 Ω
D29-2 (TPI) - A35-6 (TPI)	Always	Below 1 Ω
D29-3 (S5) - A35-16 (SG-3)	Always	Below 1 Ω
D29-1 (SG) or A36-13 (S5-2) - Body ground	Always	10 kΩ or higher
D29-2 (TPI) or A35-6 (TPI) - Body ground	Always	10 kΩ or higher
D29-3 (S5) or A35-16 (SG-3) - Body ground	Always	10 kΩ or higher

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

Air Mix Damper Position Sensor Circuit (Passenger Side) (B1431/31)

DESCRIPTION This sensor detects the position of the air mix damper (for front passenger side) and sends the appropriate signals to the air conditioning amplifier assembly. The position sensor is ...

Lost Communication with ECM (U0100,U0142,U0155)

DESCRIPTION DTC No. DTC Detecting Condition Trouble Area U0100 No communication with ECM CAN communication system ...

Other materials:

Installation
INSTALLATION PROCEDURE 1. INSPECT AND ADJUST BRAKE BOOSTER PUSH ROD NOTICE: The brake booster interior must not be a vacuum when adjusting the booster. Stop the engine and depress the brake pedal several times until there is no vacuum in the booster. HINT: Adjust the booster push rod when ...

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 ...

Blind Spot Monitor Slave Module Beam Axis Inspection Incomplete (C1ABC)
DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor RH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The purpose of this DTC is to ensure that beam axis inspection is performed. Completing the be ...