Mute Signal Circuit between Navigation Assembly and Multi-display Controller: Procedure

CHECK MULTI-DISPLAY CONTROLLER

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

Fig 1: Identifying R32 Connector Terminals

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Standard voltage

Tester Connection	Switch Condition	Specified Condition
R32-6 (MUT5) - Body ground	Turn power switch ON (ACC), audio system is playing → Changing modes	Above 3.5 V → Below 1 V

NG → See step 2

OK → See step 3

CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION ASSEMBLY - MULTI-DISPLAY CONTROLLER)

Disconnect the L62 navigation connector.

Fig 2: Identifying L32 Display And Navigation Assembly With R32 Multi-Display Controller Connector
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Disconnect the R32 controller connector.

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

Standard resistance

Tester Connection	Condition	Specified Condition
L62-8 (MUTE) - R32-6 (MUT5)	Always	Below 1 Ω
L62-8 (MUTE) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → See step 4

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE
REPLACE DISPLAY AND NAVIGATION ASSEMBLY. Refer to REMOVAL