If pressures are within desired values, proceed to next step. Hydraulic control circuit and mechanical failure. The last sensor touched that corrected the voltage is the culprit. As speed increases, the truck revs vey high before shifting. However, it could also be accompanied by other specific trouble codes. Most times, transmission lines will have test ports installed from the factory.
There is 270 thou on the tranny and never been changed. If the code comes back, then the problem is really caused by an actual failure in the transmission. Check or have tested the shifting solenoids. The intent of this diagnostic is to detect if the transmission is slipping or an invalid gear ratio is present. This may be internal or external. Then test the 5 volt reference voltage. This causes the Pcm engine computer to turn the check engine light on.
Gear ratios allow vehicles to achieve high speeds and climb steep mountains. Using multimeter check for continuity, shorts and open in the wires involved. This code means the tcm detected a gear ratio error in third gear. With key on engine off, test the tps power and ground wires. Otherwise, it can play havoc to your shifting cycles which can cause this code P0733.
Other gear ratio codes often accompany this code. If there are glitches, replace the tps sensor right away and reset the code. Newer vehicle models are equipped with more than four gear ratios for fuel efficiency. Both of these require full rebuild. Regardless of how you approach it, you should get this fixed right away. Unplug the transmission speed sensors. Refer to service manual for oil pressure specifications for every gear.
Spark plugs typically need to be replaced every season or 25 hours of use. So, if the input speed is 2 rpm and the output speed is 4 rpm the gear ratio would be 2:1 said: 2 to 1. Refer to service manual for codes that would be priority. If symptoms or code reappears, proceed to next step. If there are any cracks that may or may not be leaking, most times, transmission should be replaced. Is the fluid level correct? Other related codes include: Error codes P0729, P0730, P0731, P0732, P0734, P0735 and P0736. Thus, it is important to fix electrical problems before proceeding to the next step of diagnosis.
However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. The solution is here : Mazda 3 P0733 Possible Solution : Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Because this is such a large expense, I decided to get a second evaluation before agreeing. If trany is suspected, most common fix for this points to a defective valve body. Feb 22, 2010 code po700 is to tell the ecm and you there is a trans. You should also check that the spark plug gap is set properly.
Often times, there are speed sensors at the input and output of the transmission. During Downshift - detected calculated gear is less than actual expected gear. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Depending on the severity of the problem, technicians may perform a torque converter stall speed test to determine whether the stall speed of the engine is within the factory specifications or not.
Control circuit is expensive and hard to get to. Trans shifts great, no slipping or anything like that. Common Symptoms As with other error codes P0733 triggers the Check Engine light. Low or dirty transmission problem is probably the most common cause of this error code. Some applications require multiple failure cycles in order for a service engine soon lamp to be illuminated.