Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

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3. INSPECT HTR RELAY
(a) Remove the HTR relay.
(b) Inspect the HTR relay .
NG
REPLACE HTR RELAY
4. CHECK HARNESS AND CONNECTOR (HTR RELAY - POWER SOURCE CIRCUIT)
(a) Remove the HTR relay.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION SWITCH CONDITION SPECIFIED CONDITION
HTR-5 - Body ground Always 11 to 14 V
HTR-1 - Body ground Ignition switch ON 11 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
5.
CHECK HARNESS AND CONNECTOR (HTR RELAY - BLOWER MOTOR CONTROL AND AIR
CONDITIONING AMPLIFIER ASSEMBLY)
(a) Remove the HTR relay.
(b) Disconnect the B9 blower motor control connector.
(c) Disconnect the A36 air conditioning amplifier assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION CONDITION SPECIFIED CONDITION
HTR-3 - B9-5 (+B) Always Below 1 Ω
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