Radiator and A/C Condenser Fan Common Circuit Troubleshooting
WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Do not use this troubleshooting procedure if the A/C compressor is inoperative. Refer to SYMPTOM TROUBLESHOOTING INDEX .
- Before doing any symptom troubleshooting, check for powertrain DTCs (see GENERAL TROUBLESHOOTING INFORMATION ).
- Remove the radiator fan relay and A/C condenser fan relay from the auxiliary under-hood relay box, and test them (see POWER RELAY TEST
).
Are the relays OK?
YES - Go to step 2.
NO - Replace the relays.
- Reinstall the relays.
- Jump the SCS line with the HDS.NOTE: This step must be done to protect the engine/powertrain control module (ECM/PCM) from damage.
- Disconnect ECM/PCM connector A (49P).
- Connect the ECM/PCM connector A (49P) terminal No. 6 to body ground with a jumper wire.
- Turn the ignition switch to ON (II).
Do the fans run?
YES - Check for loose wires or poor connections at ECM/PCM connector A (49P). If the connections are good, substitute a known-good ECM/PCM, and recheck. If the symptom/indication goes away, replace the original ECM/PCM (see ECM/PCM REPLACEMENT ).
NO - Repair open in the wire between the radiator fan relay, the A/C condenser fan relay, and the ECM/PCM.