DTC B1206: P/W Master Switch Communication Stop [10/2013 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Remove the instrument panel junction block assembly. Refer to REMOVAL [10/2013 - ]
.
- Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
- Measure the resistance according to the value(s) in the table below.
HINT:
This inspection is to check the LIN line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU).
Standard Resistance
Tester Connection Condition Specified Condition 2A-27 (LIN2) - MB-16 (LIN2) Always Below 1 Ω 2A-27 (LIN2) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*a Component without harness connected
(Instrument Panel Junction Block Assembly)*b Component without harness connected
(Instrument Panel Junction Block Assembly)
NG → See step 6
OK: Go to next step
- Remove the instrument panel junction block assembly. Refer to REMOVAL [10/2013 - ]
.
- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK MASTER SWITCH)
- Disconnect the O6 multiplex network master switch assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 2A-27 (LIN2) - O6-17 (LIN1) Always Below 1 Ω 2A-27 (LIN2) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - AUXILIARY BATTERY, BODY GROUND)
- Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition O6-11 (B) - O6-12 (GND) Power switch off 11 to 14 V Standard Resistance
Tester Connection Condition Specified Condition O6-12 (GND) - Body ground Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- Measure the voltage and resistance according to the value(s) in the table below.
- REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
- Replace the multiplex network master switch assembly. Refer to REMOVAL [10/2013 - ] .
NEXT: Go to next step
- CHECK DTC OUTPUT
- Clear the DTC. Refer to DTC CHECK / CLEAR [10/2013 - ] .
- Recheck for DTCs.
OK
DTC B1206 is not output.
NG → See step 7
OK → END (MULTIPLEX NETWORK MASTER SWITCH WAS DEFECTIVE)
- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to REMOVAL [10/2013 - ]
- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL [10/2013 - ]