Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
A/C System Symptoms
| Symptom/Suspect Area | See | |
|---|---|---|
| No Blower Operation | ||
| HTR Fuse | ..... | |
| Heater Main Relay | HEATER MAIN RELAY | |
| Blower Motor | BLOWER MOTOR | |
| Blower Resistor | BLOWER RESISTOR (Manual A/C) | |
| Blower Speed Control Switch | Step 9 Under Inspection | |
| Wire Harness | ..... | |
| No Air Temperature Control | ||
| Engine Coolant Volume | ..... | |
| Heater Control Assembly | HEATER CONTROL ASSEMBLY (Manual A/C) | |
| Water Valve | WATER VALVE | |
| No Compressor Operation | ||
| Refrigerant Volume | Step 1Under On-Vehicle Inspection | |
| A/C Fuse | ..... | |
| Magnettic Clutch | COMPRESSOR AND MAGNETIC CLUTCH | |
| Compressor | COMPRESSOR AND MAGNETIC CLUTCH | |
| Pressure Switch | PRESSURE SWITCH | |
| Heater Main Relay | HEATER MAIN RELAY | |
| Blower Speed Control Switch | Step 9 Under Inspection | |
| Thermistor | Step 3 Under On-Vehicle Inspection | |
| Wire Harness | ..... | |
| Compressor Operates Intermittently | ||
| Refrigerant Volume | Step 1 Under On-Vehicle Inspection | |
| Pressure Switch | PRESSURE SWITCH | |
| Thermistor | Step 3 Under On-Vehicle Inspection | |
| Wire Harness | ..... | |
| No Cool Air Comes Out | ||
| Refrigerant Volume | Step 1 Under On-Vehicle Inspection | |
| Refrigerant Pressure | Step 2 Under On-Vehicle Inspection | |
| Drive Belt | DRIVE BELT | |
| Magnetic Clutch | COMPRESSOR AND MAGNETIC CLUTCH | |
| Compressor | COMPRESSOR AND MAGNETIC CLUTCH | |
| Pressure Switch | PRESSURE SWITCH | |
| Thermistor | Step 3 Under On-Vehicle Inspection | |
| Heater Control Assembly | HEATER CONTROL ASSEMBLY (Manual A/C) | |
| Wire Harness | ..... | |
| Cool Air Comes Out Only At High Engine RPM | ||
| Refrigerant Volume | Step 1Under On-Vehicle Inspection | |
| Drive Belt | DRIVE BELT | |
| Magnetic Clutch | COMPRESSOR AND MAGNETIC CLUTCH | |
| Compressor | COMPRESSOR AND MAGNETIC CLUTCH | |
| Condenser | CONDENSER | |
| Receiver | RECEIVER | |
| Expansion Valve | Step 2 Under On-Vehicle Inspection | |
| Evaporator | Step 1 Under Inspection | |
| Thermistor | Step 3 Under On-Vehicle Inspection | |
| Wire Harness | ..... | |
| Insufficient Cooling | ||
| Refrigerant Volume | Step 1 Under On-Vehicle Inspection | |
| Drive Belt | DRIVE BELT | |
| Magnetic Clutch | COMPRESSOR AND MAGNETIC CLUTCH | |
| Compressor | COMPRESSOR AND MAGNETIC CLUTCH | |
| Consenser | CONDENSER | |
| Receiver | RECEIVER | |
| Expansion Valve | Step 2 Under On-Vehicle Inspection | |
| Evaporator | Step 1 Under Inspection | |
| Refrigerant Lines | REFRIGERANT LINE | |
| Pressure Switch | PRESSURE SWITCH | |
| Heater Control Assembly | HEATER CONTROL ASSEMBLY (Manual A/C) | |
| No Engine Idle-Up When A/C Switch Is ON | ||
| Idle Control System | DTC P0505: IDLE CONTROL SYSTEM MALFUNCTION | |
| Wire Harness | ..... | |
| No Warm Air Comes Out | ||
| Engine Coolant Volume | ..... | |
| Heater Control Assembly | HEATER CONTROL ASSEMBLY (Manual A/C) | |
| Water Valve | WATER VALVE | |
| Heater Radiator | Step 1 Under Inspection | |
Rear heater:
Rear Heater Symptoms
| Symptom/Suspect Area | See | |
|---|---|---|
| No Blower Operation | ||
| RR HTR Fuse | ..... | |
| Rear Heater Relay | REAR HEATER RELAY | |
| Rear Blower Switch | REAR BLOWER SWITCH | |
| Rear Blower Resistor | REAR BLOWER RESISTOR | |
| Rear Blower Motor | Step 2 Under Inspection | |
| Wire Harness | ..... | |
| No Air Temperature Control | ||
| Engine Coolant Volume | ..... | |
| Rear Heater Control Assembly | REAR HEATER CONTROL ASSEMBLY | |
| No Warm Air Comes Out | ||
| Enginge Coolant Volume | ..... | |
| Rear Heater Control Assembly | REAR HEATER CONTROL ASSEMBLY | |
| Rear Heater Radiator | Step 2 Under Inspection | |