wsm M7040 - Glow Plug

ELECTRICAL SYSTEM
M6040, M7040, WSM
9-S16
Main Switch at ON Position
1. Turn the main switch to ON position.
2. Measure the resistance with an ohmmeter across the terminal 3
and the terminal 6.
3. If 0 ohm is not indicated, the 3 – 6 contacts of the main switch
are faulty.
9Y1210143ELS0021US0
Main Switch at START Position
1. Turn and hold the main switch at the START position.
2. Measure the resistances with an ohmmeter across the terminal
5 and across terminal 3 and the terminal 6.
3. If 0 ohm is not indicated, these contacts of the main switch are
faulty.
9Y1210143ELS0022US0
Main Switch at PREHEAT Position
1. Turn and hold the main switch key at the PREHEAT position.
2. Measure the resistances with an ohmmeter across the terminal
3 and terminal 2, and the terminal 3 and the terminal 6.
3. If 0 ohm is not indicated, these contacts of the main switch are
faulty.
9Y1210143ELS0023US0
Main Switch at ACC Position
1. Turn the main switch key at the ACC position.
2. Measure the resistances with an ohmmeter across the terminal
3 and the terminal 1.
3. If 0 ohm is not indicated, these contacts of the main switch are
faulty.
9Y1210143ELS0024US0
[3] GLOW PLUG
Glow Plug
1. Disconnect the leads from the glow plugs.
2. Measure the resistance with an ohmmeter across the glow plug
terminal and chassis.
3. If 0 ohm is indicated, the screw at the tip of the glow plug and
the housing are short-circuited.
4. If the factory specification is not indicated, renew the glow plug.
9Y1210143ELS0025US0
Resistance Terminal 3 – Terminal 6 0 Ω
(1) Main Switch Connector
Resistance
Terminal 3 – Terminal 5 0 Ω
Terminal 3 – Terminal 6 0 Ω
(1) Main Switch Connector
Resistance
Terminal 3 – Terminal 2 0 Ω
Terminal 3 – Terminal 6 0 Ω
(1) Main Switch Connector
Resistance Terminal 3 – Terminal 1 0 Ω
(1) Main Switch Connector
Glow plug resistance Factory specification Approx. 0.95 Ω
KiSC issued 07, 2012 A