HEXA

ENGINE 183 BRAKE LIGHT SWITCH PIN NO DESCRIPTION 1 Ground 2 Ground 3 Clutch pedal signal to EMS 4 Clutch pedal signal to EMS (Cruise Control) 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 con- nectivity. 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 brack- et and tighten its mounting nut. NOTE Refer clutch section for clutch switch adjustment details. 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 generated by the glow plugs is directed into the cyl- inders 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 5Ω, the glow plug is Ok.