Troubleshooting
Contents
1. Reconnect the connector button type 14 P lever type 10 P to the heater control panel and turn A C switch ON J Disconnect the 8 P connector from the fan switch ee o iF Connect a jumper wire between the GRN terminal and body ground To page 15 56 cont d 15 55 Troubleshooting Troubleshooting Flowchart A C System cont d From page 15 55 Do both fans and the compressor run YES Turn the ignition switch OFF Check for continuity from BLK Repair open in GRN wire between fan switch and function control panel terminal to body ground gii Repair open in BLK wire lt NO between the fan switch and body inuity ls there contnuity 2 ground or poor ground G401 YES 402 Replace the fan switch 15 56 Troubleshooting Flowchart Compressor NOTE Check for blown No 7 7 5 A fuse Compressor does not come on Disconnect the 4 P connector from the compressor clutch relay ai Measure voltage between the BLK YEL 1 terminal and body ground J Turn the ignition switch on E is there battery voltage 7 BLK YEL 2 BLK YEL 1 ri RED BLU Repair open in BLK YEL wire between the No 7 7 5 A and compressor clutch relay a View from terminal side Measure voltage betw2. Troubleshooting Troubleshooting Flowchart A C System cont d From page 15 53 Reconnect the 2 P connector to the pressure switch Disconnect the 2 P connector from the thermostat switch Connect a jumper wire between the BLU YEL terminal and body ground BLU YEL BLU RED View from wire side Repair open in BLU YEL wire between pressure and thermo stat switches Do both fans and the compressor run Connect a jumper wire between the BLU YEL and BLU RED termi nals il Do both fans and the compressor run eG Check evaporator temperature If temperature is above 41 F replace A C thermostat r Turn the ignition switch OFF Reconnect the 2 P connector to the thermostat switch Disconnect the connector Button type 14 P lever type 10 P L from the heater control panel To page 15 55 LEVER TYPE From page 15 54 Connect a jumper wire between BLU RED the BLU RED terminal and body ground i Start the engine i Repair open in BLU RED wire between the thermostat and A C switch Do both fans and the compressor NO run View from wire side YES L Connect a jumper wire between the BLU RED and GRN terminals E Do both fans and the compressor YES Inspect the A C switch run page 15 36 NO
3. een the BLK YEL 2 terminal and body ground lt ts there battery voltage YES Repair open in BLK YEL wire between the No 7 7 5 A and compressor clutch relay Connect the jumper wire between the BLK YEL 1 terminal and RED terminal Turn the ignition OFF and Recon nect the 4 P connector to the compressor clutch relay YES PGM FI PGM CARB Engine To page 15 58 To page 15 60 Carbureted Engine To page 15 59 clutch Does the compressor engage cont d 15 57
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