ELECTRICAL SYSTEM
B2650HSDC, B3350HSDC, WSM
8-S32
(8) DPF INHIBIT Switch (Default Version)
• Firstly check the connector voltage, secondly check the other wires continuity, then finally check the
switch continuity.
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Connector Voltage
1. Disconnect the connector, and turn the main key switch "ON"
position.
2. Measure the voltage with a voltmeter across the terminals
shown in the table below.
3. If the reference value is not indicated as shown in the table
below, check the relating electric circuit.
9Y1210822ELS0113US0
Switch Continuity
1. Check the continuity across the terminals shown in the table
below.
2. If the continuity specified below is not indicated, the auto
regeneration switch is faulty.
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Voltage
Main switch at
"ON"
Terminal 1 –
chassis
Approx. battery
voltage
Terminal 3 –
chassis
(1) DPF INHIBIT Switch (2) Connector (Harness Side)
Continuity Check
Terminal 1 – 4
Continuity
Terminal 3 – 6
(1) Connector (Switch Side)