Microphone Circuit Between Microphone and Navigation Receiver Assembly

NAVIGATION: NAVIGATION SYSTEM (w/ DVD Player): Microphone Circuit between Microphone and Navigation Receiver Assembly
- Microphone Circuit between Microphone and Navigation Receiver Assembly

DESCRIPTION

This circuit sends a microphone signal from the telephone microphone assembly to the navigation receiver assembly.

It also supplies power from the navigation receiver assembly to the telephone microphone assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK NAVIGATION RECEIVER ASSEMBLY

(a) Disconnect the E93 navigation receiver assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - MAP LIGHT)

(a) Disconnect the E93 navigation receiver assembly connector.

(b) Disconnect the P5 map light connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. REPLACE TELEPHONE MICROPHONE ASSEMBLY WITH ANOTHER AND CHECK

(a) Replace the telephone microphone assembly with a new or normally functioning one Removal.

(b) Check if the same problem occurs again.

NG -- REPLACE MAP LIGHT ASSEMBLY Removal

OK -- END (TELEPHONE MICROPHONE ASSEMBLY IS FAULTY)