DESCRIPTION
The power back door ECU controls the back door closer system. In response to the signals output from the switches related to the back door lock, the back door latch activates the closer motor.
HINT: The back door closer system operates regardless of whether the power back door main switch is ON / OFF.
WIRING DIAGRAM

INSPECTION PROCEDURE
1 INSPECT BACK DOOR LOCK
2 POWER SOURCE RESET
3 INSPECT BACK DOOR LOCK ASSEMBLY

OK: The latch turns to the open-latch position
OK


Resistance

Resistance

Resistance

4 CHECK WIRE HARNESS (BACK DOOR LOCK ASSEMBLY - POWER BACK DOOR ECU)

Resistance (Check for open circuit)

Resistance (Check for open circuit)

REPLACE POWER BACK DOOR ECU
Back Door Closer Switch Malfunction
Power back door systemRear 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
...
Problem symptoms table
HINT:
Before performing verification listed in the table below,
check the fuse and relay.
Check the circuits for each problem symptom in the order
given in the table below, and proceed to the relevant page.
CLEARANCE SONAR SYSTEM:
*1: with Front Clearance Sonar
*2: wit ...
Problem symptoms table
POWER WINDOW CONTROL SYSTEM (W/ JAM PROTECTION)
Symptom
Suspected Area
AUTO UP/DOWN function does not operate
Power window regulator motor assembly (Driver side)
Wire harness
Power window regulator master switch assembly
Remote ...