2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 541

Standard Voltage:

Text in Illustration

NG -- INSPECT DCM (TELEMATICS TRANSCEIVER) (TELEPHONE MICROPHONE POWER SOURCE)

OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY)

(a) Disconnect the G25 DCM (Telematics Transceiver) connector.

(b) Disconnect the T10 map light assembly connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- Continue to next step.

4. REPLACE TELEPHONE MICROPHONE ASSEMBLY

(a) Replace the telephone microphone assembly with a normal one and check if the same problem occurs again See: Accessories and

Optional Equipment/Cellular Phone/Cellular Phone Microphone/Service and Repair/Telephone Microphone/Removal.

OK:

The system returns to normal.

NG -- REPLACE MAP LIGHT ASSEMBLY See: Accessories and Optional Equipment/Emergency Contact Button/Service and

Repair/Manual (SOS) Switch/Removal