2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) U CODE Page 21

3. CHECK IF DTC OUTPUT RECURS

(a) Connect the Techstream to the DLC3.

(b) Clear the DTCs.

(c) Replace the TCM.

HINT

Replace the TCM with a TCM from a normally functioning vehicle of the same model.

(d) Start the engine.

(e) Read the DTCs.

Result:

B -- REPLACE TCM See: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and

Drivetrain/Relays and Modules - A/T/Control Module/Service and Repair/U660E Automatic Transaxle/Removal

A -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and

Repair/Removal

From 08/2009

U660E AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: U0100: Lost Communication with

ECM / PCM "A"

U0100 - Lost Communication with ECM / PCM "A"

DESCRIPTION

The engine control unit communicates with the TCM using the Controller Area Network (CAN).

If there is a problem in this communication, the TCM sets a DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS