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:

How to proceed with troubleshooting
HINT: Troubleshoot in accordance with the procedures on the following pages. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) Use the intelligent tester to check for norma ...

Reassembly
1. INSTALL BRAKE PEDAL PAD (a) Install the brake pedal pad to the brake pedal subassembly. 2. INSTALL PUSH ROD PIN (a) Apply lithium soap base glycol grease to inside surface of 2 new push rod bushes. (b) Install the 2 new push rod bushes. (c) Install the 2 push rod pins with the 2 plate t ...

Short to B+ in Driver Side Squib Circuit
DTC B0103/12 Short to B+ in Driver Side Squib Circuit DESCRIPTION The driver side squib circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B0103/12 is recorded when a ...