Toyota Sienna Service Manual: Rear Door ECU LH Communication Stop

Toyota Sienna Service Manual / Multiplex communication / System description / Diagnostic trouble code chart / 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 seconds.

DTC No.	DTC Detection Condition	Trouble Area
B1217	RL-DOOR ECU communication stops	Power slide door ECU LH Wire harness

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

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

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

Disconnect the P25 and P26 ECU connectors.
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 LH - GROUND)

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

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

Standard resistance

Standard resistance

3 CHECK COMMUNICATION LINE

CHECK COMMUNICATION LINE

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

Standard resistance

Standard resistance

Result

Result

REPLACE POWER SLIDE DOOR ECU LH

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 s ...

A/C ECU Communication Stop

DTC B1262 A/C ECU Communication Stop DESCRIPTION DTC B1262 is output when communication between the A/C amplifier and the multiplex network gateway ECU stops for more than 10 seconds. ...

Other materials:

Installation
1. Install heated oxygen sensor (for bank 2 sensor 2) (see page ec-34) 2. Install front exhaust pipe assembly (a) Install 2 new gaskets to the front exhaust pipe assembly. (b) Install the front exhaust pipe assembly with the 4 nuts. Torque: 62 n*m (632 kgf*cm, 46 ft.*Lbf) 3. INSTALL CE ...

Radio and Navigation Assembly Power Source Circuit
DESCRIPTION This is the power source circuit to operate the radio and navigation assembly. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT RADIO AND NAVIGATION ASSEMBLY Disconnect the radio and navigation assembly connector R15. Measure the resistance according to the value ...

Problem symptoms table
Proceed to the reference page shown in the table below for each malfunction symptom and troubleshoot each circuit. HINT: Troubleshooting of the theft deterrent system is based on the premise that the door lock control system and the wireless door lock control system are operating normally. Ac ...