U0211

MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: U0211: Lost Communication with Rear Seat Control ECU RH
U0211 - Lost Communication with Rear Seat Control ECU RH

DESCRIPTION

This DTC is output when LIN communication between the position control ECU RH and rear power seat module switch stops for 10 seconds or more.





HINT
For vehicles with rear power seat control system only.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When using the Techstream with the engine switch off to troubleshoot:

Connect the Techstream to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.

HINT
When DTC U0211, U0246, U1130 and U1131 are output simultaneously, perform troubleshooting for "Rear Side Switch Module LIN Communication Malfunction" first Rear Side Switch Module LIN Communication Malfunction.

PROCEDURE

1. CLEAR DTC

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

2. CHECK FOR DTC

(a) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC U0211 is not output.

NG -- CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH - POSITION CONTROL ECU RH)

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

3. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH - POSITION CONTROL ECU RH)

(a) Disconnect the r2*1 or S15*2 module switch connector.

HINT
*1: except 4-Passenger with Ottoman

*2: for 4-Passenger with Ottoman





(b) Disconnect the f37 ECU connector.

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

Standard resistance:

except 4-Passenger with Ottoman:





for 4-Passenger with Ottoman:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK POSITION CONTROL ECU RH (BATTERY VOLTAGE AND GROUND)

(a) Disconnect the f4 and f37 ECU connectors.





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

Standard resistance:





Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE POSITION CONTROL ECU RH

(a) Temporarily replace the position control ECU RH with a new or normally functioning one.

except Ottoman: Disassembly

for Ottoman: Disassembly

(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

6. CHECK FOR DTC

(a) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC U0211 is not output.

Result





B -- REPLACE REAR POWER SEAT MODULE SWITCH Disassembly

C -- REPLACE REAR POWER SEAT MODULE SWITCH Disassembly

A -- END (POSITION CONTROL ECU RH IS DEFECTIVE)