Tacoma

Toyota Tacoma 2015-2018 Air Conditioning Workshop Manual

OK
OK
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
5.
CHECK HARNESS AND CONNECTOR (QUICK HEATER ASSEMBLY - PTC HTR RELAY AND
BODY GROUND)
(a) Remove the PTC HTR relays.
(b) Disconnect the Q1 quick heater assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
PTC HTR NO. 1
TESTER CONNECTION CONDITION SPECIFIED CONDITION
PTC HTR NO. 1-3 - Q1-3 (B) Always Below 1 Ω
Q1-2 (E) - Body ground Always Below 1 Ω
Q1-4 (E) - Body ground Always Below 1 Ω
PTC HTR NO. 1-3 or Q1-3 (B) - Body ground Always 10 kΩ or higher
PTC HTR NO. 2
TESTER CONNECTION CONDITION SPECIFIED CONDITION
PTC HTR NO. 2-3 - Q1-1 (B) Always Below 1 Ω
Q1-2 (E) - Body ground Always Below 1 Ω
PTC HTR NO. 2-3 or Q1-1 (B) - Body ground Always 10 kΩ or higher
PTC HTR NO. 3
TESTER CONNECTION CONDITION SPECIFIED CONDITION
PTC HTR NO. 3-3 - Q1-5 (B) Always Below 1 Ω
Q1-4 (E) - Body ground Always Below 1 Ω
PTC HTR NO. 3-3 or Q1-5 (B) - Body ground Always 10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
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