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Table of Contents > A/C Diagnostic Process

Honda CR-V Heating, Ventilation & Air Conditioning Troubleshooting ➜ A/C Diagnostic Process

Fig. 35: Identifying A/C Diode A  
Courtesy of AMERICAN HONDA MOTOR CO., INC.  
Is there current flow in only one direction?  
YES : An open in No. A8 (7.5 A) fuse circuit wire. REPLACE THE UNDER-HOOD FUSE/RELAY  
BOX .  
NO : Replace A/C diode A.  
A/C DIAGNOSTIC PROCESS  
When a customer presents A/C concern, do the following procedure to identify the cause of the problem.  
1. Confirm the type of concern.  
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If a customer presents about A/C noise problem, do the A/C System Noise Check .  
If a customer presents about A/C performance problem, go to step 2.  
2. Do the A/C System Inspection and repair any problems. If no problems are found, then go to step 3.  
3. Recover the refrigerant from the A/C system See A/C REFRIGERANT RECOVERY , A/C  
SYSTEM CHARGING or A/C System Evacuation and measure the refrigerant charge from the A/C  
system using a recovery/recycling/charging station that meets SAE J2788 standards.  
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If the refrigerant charge is within specifications, evacuate See A/C REFRIGERANT  
RECOVERY , A/C SYSTEM CHARGING or A/C System Evacuation and recharge the  
system See A/C REFRIGERANT RECOVERY , A/C SYSTEM CHARGING or A/C System  
Evacuation . Then go to step 4.  
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If the refrigerant charge is significantly under specifications, then go to step 5.  
If the refrigerant charge is significantly over specifications, evacuate See A/C REFRIGERANT  
RECOVERY , A/C SYSTEM CHARGING or A/C System Evacuation and recharge the  
system See A/C REFRIGERANT RECOVERY , A/C SYSTEM CHARGING or A/C System  
Evacuation . Then go to step 7.  
4. Do the A/C System Test .  
If vent temperature or suction/discharge pressures are not within specifications, diagnose and repair  
the A/C system as needed. Then go to step 6.  
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If no problems are found, the A/C system is operating as designed and the A/C diagnostic process  
is complete.  
5. Do the REFRIGERANT LEAK CHECK .  
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If any leaks are found, repair the A/C system as needed. Then go to step 6.  
If no leaks are found, go to step 7.  
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6. Evacuate See A/C REFRIGERANT RECOVERY , A/C SYSTEM CHARGING or A/C System  
Evacuation and recharge the system See A/C REFRIGERANT RECOVERY , A/C SYSTEM  
CHARGING or A/C System Evacuation . Then go to step 7.  
7. Do the A/C System Test to confirm your repairs.  
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If vent temperature or suction/discharge pressures are within specifications, the repair is confirmed  
and the A/C diagnostic process is complete.  
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If vent temperature or suction/discharge pressures are not within specifications, a problem may still  
exist. Return to step 1 and recheck your test procedures.  
A/C SIGNAL CIRCUIT TROUBLESHOOTING (CLIMATE CONTROL)