I have two codes I can't figure out.
One is from the PCM PO704 clutch switch circut. I haven't a clue it works fine
The other one is from the HVAC system it is BO333C. I can't find it in my cheat sheet. I do know I have a bad ambeint sensor as it shows 69 degress all the time. The AC works fine but when I try to reset the code the AC blows hot for a few seconds while the code is trying to reset then the AC blows cold again, ANY CLUES WOULD BE GREAT
I read somewhere that if you get the PO704 code, try starting your car without depressing the clutch (obviously in neutral). If it starts then you know the switch is bad or wiring faulty. I don't know where the switch is located. Just don't let anyone else drive your car!
Paul.
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The vehicle speed goes from 0 km/h (0 mph) to greater than 39 km/h (24 mph) and back to 0 km/h (0 mph) for 2 seconds without the PCM detecting a clutch transition.
This must occur 7 times before the diagnostic reports a fault.
DTC B0333
Circuit Description
The HVAC control module monitors the ambient air temperature with an ambient air temperature sensor. When the air is cold, the sensor resistance and signal voltage are high. When the air is warm, the sensor resistance and signal voltage are low. The HVAC control module displays the ambient air temperature.
Conditions for Running the DTC
The ignition is turned ON.
Conditions for Setting the DTC
The HVAC control module detects the signal circuit is more than 4.90 V.
Action Taken When the DTC Sets
The HVAC control module will store the trouble code in memory.
A default value will be used for the sensor data by the HVAC control module to allow the A/C system to operate.
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The vehicle speed goes from 0 km/h (0 mph) to greater than 39 km/h (24 mph) and back to 0 km/h (0 mph) for 2 seconds without the PCM detecting a clutch transition.
This must occur 7 times before the diagnostic reports a fault.
DTC B0333
Circuit Description
The HVAC control module monitors the ambient air temperature with an ambient air temperature sensor. When the air is cold, the sensor resistance and signal voltage are high. When the air is warm, the sensor resistance and signal voltage are low. The HVAC control module displays the ambient air temperature.
Conditions for Running the DTC
The ignition is turned ON.
Conditions for Setting the DTC
The HVAC control module detects the signal circuit is more than 4.90 V.
Action Taken When the DTC Sets
The HVAC control module will store the trouble code in memory.
A default value will be used for the sensor data by the HVAC control module to allow the A/C system to operate.
The air temp switch I had figured out, but the Clutch switch codes still puzzles me. I am not driving the car any differant than I have for the last 7 years amd I have never seen that code set. I don't know why or what situation would put me drivng 0-24-0 mph for 7 times everday and setting that code. I wonder if the PCM is not getting the signal from my clutch pedal and that might be the problem, The Clutch interlock for starting is working.
I must admit to being a bit confused by the description as well. 0-24-0 in 2 seconds isn't anything that'd be likely to happen very often, clutch switch or no. But that being said, the problem would be least expensive to repair if it were because of the switch, so I'd replace the switch and see if the problem goes away. If not, you need to start looking at the PCM and BCM, though I'd be surprised if either had a problem that didn't result in more obvious codes (like the "loss of communications" codes).
Note: it says "FOR" 2 seconds, not 'IN' 2 seconds. In other words, the condition could exist for 20 minutes or 20 hours, but must be for at least 2 seconds.
Example: accelerate from a stop to 60 mph while getting on an Interstate, remain at more than 24 mph for 10 minutes and then exit the Interstate and come to a stop. Repeat 7 times without the car ever detecting clutch use and that code will be set.
ps: It should read "For more than 2 seconds" or "For 2 seconds or more", etc. Oh well.
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