2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 533

(d) Turn the Techstream on.

(e) Perform "HEALTH CHECK" and check for current DTCs See: Accessories and Optional Equipment/Emergency Contact

Module/Testing and Inspection/Initial Inspection and Diagnostic Overview/Safety Connect System/Health Check.

Result:

B -- INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH RED INDICATOR CONDITION)

A -- Continue to next step.

2. INSPECT MAP LIGHT ASSEMBLY (RED INDICATOR)

(a) Disconnect the T10 map light assembly connector.

(b) Connect 2 dry-cell batteries (1.5 V each) in series.

(c) Connect the positive (+) lead to terminal T10-4 (IND1) and the negative (-) lead to terminal T10-7 (GND3) of the map light assembly

connectors.

(d) Check if the illumination for the manual (SOS) switch red indicator comes on.

OK:

Red indicator comes on.

Text in Illustration

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

Repair/Manual (SOS) Switch/Removal

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.