2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 538

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- Continue to next step.

4. REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (Telematics Transceiver) See: Accessories and Optional Equipment/Emergency Contact Module/Service and

Repair/Removal.

NOTICE:

* The engine switch must be off.

* Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

NEXT -- PERFORM DCM ACTIVATION See: Accessories and Optional Equipment/Emergency Contact Module/Testing and

Inspection/Scan Tool Testing and Procedures/DCM Activation

5. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH GREEN INDICATOR CONDITION)

(a) Confirm the green indicator status after the engine switch on (IG) See: Accessories and Optional Equipment/Emergency Contact

Module/Description and Operation/Safety Connect System.

Result:

B -- REPLACE DCM (TELEMATICS TRANSCEIVER)

A -- Continue to next step.

6. INSPECT MAP LIGHT ASSEMBLY (GREEN INDICATOR INPUT VOLTAGE)

(a) Remove the map light assembly but do not disconnect the connectors See: Accessories and Optional Equipment/Emergency Contact

Button/Service and Repair/Manual (SOS) Switch/Removal.

(b) Connect the positive lead of a voltmeter to terminal T10-6 (IND2), and the negative lead to terminal T10-7 (GND3).

(c) Measure the voltage.

Standard:

1.0 to 8.5 V for 2 seconds after the engine switch is on (IG) and red indicator has turned off.

0 V when the engine switch is off.

Text in Illustration

NG -- INSPECT DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE)

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

Repair/Manual (SOS) Switch/Removal

7. INSPECT DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE)