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:

List of storage features
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Problem symptoms table
HINT: If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check the electrical circuits for each symptom in the order given in the charts on the following pages and proceed to the page given for troubleshooting. The Matrix Chart is ...

Reassembly
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