Operation CHARM: Car repair manuals for everyone.

Component Locations and Explanation of Symbols

Auto-Check System Components:




Auto-Check System Components

Explanation of Symbols:




Explanation of symbols

Fig. 1 - Brake Fluid Level Sending Unit:




Fig. 1 - Brake fluid level sending unit

Fig. 2 - Coolant Level Sending Unit:




Fig. 2 - Coolant level sending unit

Fig. 3 - Coolant Temp. Sending Unit:




Fig. 3 - Coolant temp. sending unit

Fig. 4 - Windshield Washer Level Sending Unit:




Fig. 4 - Windshield washer level sending unit

Fig. 5 - Hydraulic Fluid Level Sending Unit:




Fig. 5 - Hydraulic fluid level sending unit

Fig. 6 - Brake Pressure Sending Unit:




Fig. 6 - Brake pressure sending unit

Fig. 7 - Connector for Brake Pad Wear Indicator:




Fig. 7 - Connector for brake pad wear indicator, wear limit sensor integrated in, brake pad

Fig. 8 - Oil Pressure Sending Units:




Fig. 8 - Oil pressure sending units

A - oil pressure switch (white) 1.8 bar (26 psi) B - oil pressure switch (brown) 0.3 bar (4 psi)

Fig. 9 - Auxiliary Relay Panel:




Fig. 9 - Auxiliary relay panel
Front bulb control unit
^ position 6

Fig. 10 - Display Unit:




Fig. 10 - Display unit behind instrument cluster

Fig. 11 - Auto-Check Main Control Unit:




Fig. 11 - Auto-Check main control unit behind center console

Fig. 12 - Rear Bulb Control Unit:




Fig. 12 - Rear bulb control unit, trunk compartment, left side

Fig. 13 - Display Unit, 8 Point Connection:




Fig. 13 - Display unit, 8 point connection
1 - Battery voltage warn. light 2 - Oil pressure warn. light 3 - Brake pad wear indicator light 4 - Voltage supply for display unit 5 - "Red triangle" (voltage supply) 6 - "Red triangle" (ground connection) 7 - "OK" symbol light 8 - Not connected

Fig. 14 - Display Unit, 6 Point Connection:




Fig. 14 - Display unit, 6 point connection
1 - Brake fluid level light 2 - Tail light indicator light 3 - Brake light out indicator light 4 - Fuel level indicator light 5 - Windshield washer level indicator light 6 - Coolant overheat indicator light

Fig. 15 - Display Unit Lights, Checking:




Fig. 15 - Display unit lights, checking, - measure with Ohmmeter between contact 4 of 8 point connection and contacts 1, 2, 3, and 7, also on 6 point connection contact 1, 2, 3, 4, 5, and 6

^ spec's 2.5-3.5 Ohms
If not OK, - replace bulb carrier

Fig. 16 - "Red Triangle" Light, Checking:




Fig. 16 - "Red triangle" light, checking, - measure with Ohmmeter between contact 5 and 6 of 8 point connection

^ spec's 2.5-3.5 Ohms
If not OK, - replace bulb carrier

Fig. 17 - Bulb Carrier, Removing:




Fig. 17 - Bulb carrier, removing

Fig. 18 - Bulb Carrier, Installing:




Fig. 18 - Bulb carrier, installing