DESCRIPTION
This is the power source circuit to operate the navigation receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY POWER SOURCE) |
(a) Disconnect the E38 and E40 navigation receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E38-7 (GND1) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E38-4 (+B1) - E38-7 (GND1) |
Always |
11 to 14 V |
E38-3 (ACC1) - E38-7 (GND1) |
Ignition switch ACC |
11 to 14 V |
E40-1 (IG) - E38-7 (GND1) |
Ignition switch ON |
11 to 14 V |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Diagnosis System
DIAGNOSIS SYSTEM
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Data List / Active Test
DATA LIST / ACTIVE TEST
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HINT:
Using the Techstream to read the Data List allows the values or states of switches,
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