Tacoma

Toyota Tacoma 2015-2018 CAN Workshop Manual

(a) Disconnect the navigation receiver assembly connector.
(b) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
TESTER
CONNECTION
CONDITION SPECIFIED
CONDITION
N24-7 (GND1) -
Body ground
Cable disconnected from
negative (-) battery terminal
Below 1 Ω
(c) Connect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION SWITCH CONDITION SPECIFIED CONDITION
N24-3 (ACC1) - Body ground Ignition switch ACC 11 to 14 V
N24-4 (+B1) - Body ground Always 11 to 14 V
N25-1 (IG) - Body ground Ignition switch ON 11 to 14 V
Text in Illustration
*a
Front view of wire harness connector
(to Navigation Receiver Assembly)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
(POWER SOURCE CIRCUIT)
OK
REPLACE NAVIGATION RECEIVER ASSEMBLY
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