Toyota RAV4 manuals

Toyota Sienna Service Manual: Rear Door ECU RH Communication Stop

DTC B1216 Rear Door ECU RH Communication Stop

DESCRIPTION

DTC B1216 is output when communication between the power slide door ECU RH and the multiplex network gateway ECU stops for more than 10 seconds.

DTC No.

DTC Detection Condition

Trouble Area

B1216

RR-DOOR ECU communication stops
  • Power slide door ECU RH
  • Wire harness

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK HARNESS AND CONNECTOR (POWER SLIDE DOOR ECU RH - BATTERY)

CHECK HARNESS AND CONNECTOR (POWER SLIDE DOOR ECU RH - BATTERY)

  1. Disconnect the P28 and P27 ECU connectors.
  2. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

2 CHECK HARNESS AND CONNECTOR (POWER SLIDE DOOR ECU RH - GROUND)

CHECK HARNESS AND CONNECTOR (POWER SLIDE DOOR ECU RH - GROUND)

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

Standard resistance

Standard resistance

3 CHECK COMMUNICATION LINE

CHECK COMMUNICATION LINE

  1. Disconnect the G4 ECU connector.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

Result

Result

REPLACE POWER SLIDE DOOR ECU RH

Short to B+ in Door System Communication Bus Malfunction/ Short to GND in Door System Communication Bus Malfunction
DTC B1214 Short to B+ in Door System Communication Bus Malfunction DTC B1215 Short to GND in Door System Communication Bus Malfunction DESCRIPTION DTCs B1214 and B1215 are output when a short to ...

Rear Door ECU LH Communication Stop
DTC B1217 Rear Door ECU LH Communication Stop DESCRIPTION DTC B1217 is output when communication between the power slide door ECU LH and the multiplex network gateway ECU stops for more than 10 s ...

Other materials:

Engine Coolant Temperature Circuit Range / Performance Problem
DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem DESCRIPTION Refer to DTC P0115 DTC No. DTC Detection Condition Trouble Area P0116 ECTs as listed below are nearly same (2 trip detection logic):  ECT when engine is start ...

Diagnosis system
1. CHECK DLC3  The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and meets the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the igniti ...

Reassembly
1. INSTALL UNDERDRIVE CLUTCH DRUM O-RING (a) Coat a new O-ring with ATF, and install it to the underdrive clutch drum. NOTICE: Make sure that the O-ring is not twisted or pinched. 2. INSTALL UNDERDRIVE CLUTCH PISTON SET (a) Coat the underdrive clutch piston with ATF, and install it t ...

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