ARIA

ENGINE

181

INSPECTION

Disconnect the connector and check the continuity

between the following pins. When the pedal is de-

pressed there should be connectivity and when

released to rest position there should not be connec-

tivity.

Pins 1 and 3 for Clutch pedal signal to EMS circuit

Pins 2 and 4 for Clutch pedal signal to EMS circuit

for cruise control.

REFITMENT

1. Fit the clutch light switch on the mounting bracket

and tighten its mounting nut.

NOTE

Refer clutch section for clutch switch adjustment de-

tails.

14. GLOW PLUGS

Glow plug is a pencil-shaped piece of metal with a

heating element at the tip, heats due to electrical

resistance and begins to emit light in the visible

spectrum, hence the term "glow" plug. The heat gen-

erated by the glow plugs is directed into the cylinders

and serves to warm the engine block immediately

surrounding the cylinders. This aids in reducing the

amount of thermal diffusion which will occur when

the engine attempts to start.

LOCATION

INSPECTION OF GLOW PLUGS

Check glow plugs for short circuits and or for burn-

ing. Replace them if necessary.

Testing of Glow Plugs

1. Clean the glow plugs.

2. Connect the electrodes of measuring device to

the glow plug as shown in below figure.

3. If the resistance value is around

∞

Ω

the glow

plug is defective.

4. If the resistance Value is below

Ω

, the glow plug

is Ok.