Navigation ECU Power Source Circuit
Circuit diagnosis
DESCRIPTION
This is the power source circuit to operate the navigation ECU.WIRING DIAGRAM
INSPECTION PROCEDURE
| 1. INSPECT NAVIGATION ECU |
Disconnect the navigation ECU connector N4.
Measure the resistance according to the value(s) in the table below.
- Resistance:
Tester connection
Condition
Specified condition
GND1 - Body ground
Always
Below 1 Ω
Measure the voltage according to the value(s) in the table below.
- Voltage:
Tester connection
Condition
Specified condition
+B - GND1
Always
10 to 14 V
ACC - GND1
Ignition SW ACC
10 to 14 V
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