Honda CR-V: A/C Signal Circuit Troubleshooting

1. Start the engine, and let it idle.

2. Turn the blower switch on.

3. Turn the A/C switch on.

4. Check the A/C CLUTCH in the DATA LIST with the HDS.

Does it indicate ON? YES-Go to step 5.

5. Check the A/C system.

Does the A/C system operate? YES-The air conditioning system circuit is OK.

NO-Go to step 6.

6. Turn the ignition switch OFF.

7. Turn the ignition switch ON (II).

8. Activate the A/C CLUTCH in the INSPECTION MENU with the HDS.

Is there a clicking noise from the Ale compressor clutch? YES-Do the A/C system test.

NO-Go to step 9.

9. Turn the ignition switch OFF.

10. Jump the SCS line with the HDS.

11. Disconnect PCM connector A (44P).

12. Turn the ignition switch ON (II).

13. Momentarily connect PCM connector terminal A14 to body ground with a jumper wire several times.

Honda CR-V. A/C Signal Circuit Troubleshooting

Is there a clicking noise from the Ale compressor clutch? YES-Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.

NO-Check for poor connections or loose terminals at the A/C compressor clutch relay and the PCM. If the connections are OK, check the A/C compressor clutch relay. Then repair open in the wire between the PCM (A 14) and the A/C compressor clutch relay and the other A/C systems.

Alternator FR Signal Circuit Troubleshooting

1. Start the engine, and let it idle.

2. Monitor the ALTERNATOR in the DATA LIST with the HDS.

3. Check if the indicated percentage varies when the headlight switch is turned on.

Does the percentage vary? YES-The alternator signal circuit is OK.

NO-Go to step 4.

4. Turn the headlight switch and ignition switch OFF.

5. Jump the SCS line with the HDS.

6. Disconnect the alternator 4P connector.

7. Disconnect PCM connector B (44P).

8. Check for continuity between body ground and PCM connector terminal B43.

Honda CR-V. Alternator FR Signal Circuit Troubleshooting

Is there continuity? YES-Repair short in the wire between the PCM (B43) and the alternator.

NO-Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.

READ NEXT:

 PSP Switch Signal Circuit Troubleshooting

1. Start the engine, and let it idle. 2. Align the steering wheel straight ahead. 3. Check the PSP SWITCH in the DATA LIST with the HDS. Does it indicate ON? YES-Go to step 4. NO-Go to step 14. 4.

 Brake Pedal Position Switch Signal Circuit Troubleshooting

1. Turn the ignition switch ON (II). 2. Check the BRAKE SWITCH in the DATA LIST with the HDS. Does it indicate OFF? YES-Go to step 3. NO-Inspect the brake pedal position switch. 3. Press the brake

 Fuel Supply System

Component Location Index FUEL RAIL FUEL FEED LINE FUEL TANK FUEL TANK UNIT FUEL PUMP FUEL GAUGE SENDING UNIT FUEL PRESSURE REGULATOR FUEL FILTER FUEL FI

SEE MORE:

 Calculating Fuel Economy

Measuring Techniques Direct calculation is the recommended source of information about your actual fuel economy. Using frequency of fill-ups or taking fuel gauge readings are NOT accurate measures of fuel economy. Fuel economy may improve over the first several thousand miles (kilomet

 Folding the Rear Seat Forward

The left and right rear seats can be folded up separately to make room for cargo. To fold the rear seat forward: Remove any items from the seat before you fold up the seat cushion. 1. Pull up the bar under the seat cushion and slide the rear seat backward. The rear seat will not f

© 2016-2021 Copyright www.hcrv.net