Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

(2) Disconnect the A14 air conditioning amplifier assembly connector.
(3) Measure the resistance according to the value(s) in the table
below.
Text in Illustration
*a
Front view of wire harness connector
(to Air Conditioner Pressure Sensor)
*b
Front view of wire harness connector
(to Air Conditioner Amplifier Assembly)
Standard Resistance:
TESTER CONNECTION SWITCH
CONDITION
SPECIFIED
CONDITION
A34-1 (-) - A14-33
(SG-1)
Always Below 1 Ω
A34-2 (PR) - A14-5
(PRE)
Always Below 1 Ω
A34-3 (+) - A14-8
(S5-1)
Always Below 1 Ω
A34-1 (-) - Body ground Always 10 kΩ or higher
A34-2 (PR) - Body
ground
Always 10 kΩ or higher
A34- 3(+) - Body ground Always 10 kΩ or higher
If the resistance is not as specified, repair the wire harness.
(4) Connect the A14 air conditioning amplifier assembly connector.
(5) Measure the voltage according to the value(s) in the table
below.
Text in Illustration
*a
Component without harness connected
(to Air Conditioner Pressure Sensor)
Standard Voltage:
TESTER CONNECTION SWITCH
CONDITION
SPECIFIED
CONDITION
A34-3 (+) - Body
ground
IG ON 4.75 to 5.25 V
If the voltage is not as specified, repair the wire harness or
replace the air conditioning amplifier assembly.
cardiagn.com

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