Question about 2003 Honda Accord

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On my 03 accord no power to a/c clutch

Put direct power to clutch,works fine

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The a/c clutch circuit is controlled by the PCM on your Accord. It receives all necessary inputs from the car, and the driver's requests, using odvious buttons, switches, pressure switches, and several engine inputs to determine whether or not to engage the comp. Engine load/accel, temp., ambient temp, etc will all affect this. Also, if all seems normal, I have run into two of this generation Accords that had the control circuit drivers inside the PCM burned out by sloppy a/mrkt alarm system installers. These guys wreak havoc on most newer cars, because they aren't trained to properly isolate/disconnect sensitive electronics that can be damaged easily by shorting wires, or tapping into a circuit that should not be used for this purpose, etc. Good luck! And the security/immobilizer systems in the newer vehicles have NO NEED for additional security add-ons. If someone tries to sell you on them, they are scamming you for money, PERIOD.

Posted on Apr 01, 2014

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Posted on Jan 02, 2017

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Clutch coil bad . The A/C compressor clutch coil is a electromagnet an you need to check it with an ohm meter . Check out video on youtube testing A/C clutch coil .

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1990 HONDA ACCORD WON'T TURN OVER TO START BUT IT WILL ROLL START. I HAVE CHANGED THE ALTERNATOR AND TESTED THE IGNITION SWITCH STARTER RELAY SEEMS FINE CLUTCH SWITCH SEEMS FINE MAIN RELAY IS FINE


About the only thing you didn't mention was the starter itself. You could have it tested. But before that, try to see if you have power on the small wire to starter solenoid on the starter, when key is held in cranking position. Pull the small wire off and check for power with a multimeter or a testlight while someone holds the key in crank. This is the signal wire from ignition switch that closes the elec. contacts inside solenoid so the starter gets full power from the battery to spin. (This wire also is in the circuit with the clutch switch and the starter relay.) If you have power on this wire in crank, it is very likely the starter is bad. If there is no power, check that circuit out. It is losing power somewhere from switch to starter solenoid. Good luck.

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First item to check is if the refrigerant has enough pressure. Low levels of fluid will damage the compressor, so the system protects itself by not allowing the compressor to operate. (It cuts out the voltage to the relay/ clutch. If the pressure checks out ok, then check the relay and associated wiring.
As a last option check if the clutch is working. Do this WITH THE VEHICLE TURNED OFF, by applying 12 volts directly from the battery to the clutch terminal. You should hear a loud click if the clutch is working alright.

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Down SRT4


I hope to god he replaced the clutch. The older srt4's have a horrible design flaw where instead of having the flexplate heat up and warp and stop working alltogether, it grenades and takes out the transmission and sometimes the intake manifold. There are horror stories all over the internet.

http://www.srtforums.com/forums/f213/exploding-clutches-184381/

As for putting in a different computer it should all work fine if it's the same year. I've heard of people switching ecus to see if the ecu was the problem. It sounds like he has a decent amout of money into the car so instead of going with the factory ecu have him buy an aem ems. It's a stand alone performance based aftermarket computer. If you want to have full control over your engine a stand alone ecu is the way to go.

There are also cheaper ones but aem is one of the best and pefered by most tuners.

If he has any problems have him join that forum, fixya is more for generic questions. I'm sure that forum will have more than enough information for your son.



Sep 16, 2008 | 2006 Chrysler SRT

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