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Old 09-15-2010, 07:23 PM   #1 (permalink)
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Unhappy Code P0700 with P1884 2005 Forenza

Please Help

I was at a red stop light and then once the light turned green and i pressed on the gas peddle, it took a while to go, like if the power of the car was failing and then the engine light came on so i just kept driving until i got home since i was about 1 minute away. I decided to go to work walking and then i after work i took it to auto zone and the car drove fine like if nothing happend. and had them check it and came out with the 2 codes stated above. P0700 and p1884 and the p1884 came with 2 descriptions, " engine coolant level lamp circuit short to ground" and " tranmission transfer case disengaged solenoid short to ground". the guy at auto zone really didn't know what that meant. I 'm wondering first, if this is something that i need to fix ASAP and if so, will it be expensive?

Thank You
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Old 09-16-2010, 02:31 PM   #2 (permalink)
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Has your car ever received the TCM (Transmission controller) flash fix? If not, there's a TSB No.: TS 02 08055 (HARSH 4TH TO 3RD AUTOMATIC TRANSMISSION DOWNSHIFT AND UNWANTED P1884 DTC) covering this symptom. I think the update can be done under 1/2hr...

Otherwise, good luck. This is the Forenza Specific description for those 2 codes:

Quote:
DTC P0700: Transaxle Control Module (TCM) Malfunction
Circuit Description:
The Transmission Control Module (TCM) and the Engine Control Module (ECM) are connected through the serial data link circuit. The TCM sends a Class-II P-code status message to the ECM every 100 milliseconds to confirm the transmission is functioning correctly. If the TCM detects either an A- or B-type malfunction within the transmission, the TCM will send to the ECM a P-code status message to turn the Malfunction Indicator Lamp (MIL) ON and set DTC P0700.
Conditions for Setting the DTC:
* Received message from the TCM indicating malfunction is detected in TCM.
Quote:
DTC P1884: 4-3 Shift Malfunction
Circuit Description:
The special feature of 4HP 16 Auto Transaxle is that it operates without freewheels. Shifting between individual gears takes place by means of overlapping clutch engagement and release.
The advantage of overlap shifting are as follows:
* The transaxle can be of more compact design and is lighter on account of the absence of freewheels and the lower number of shift elements.
* Lower drag losses, i.e. higher efficiency.
* Lower peak torque acting on the components and driveline. However, overlap shifting necessitates high-performance hardware and software, and precision engine signals.
Conditions for Setting the DTC:
* Transmission oil temperature is greater than -10C (14F) .
* Selector lever is not in N (Neutral), P (Park) position.
* System voltage is greater than 9 volts .
* No input speed error DTCs P0715, P0716, or P0717.
* Output speed is greater than 256 rpm.
* Input speed is greater than 400 rpm.
* 4-3 gear shift is active.
* Immediately after the above condition occurs.
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Old 02-05-2011, 05:33 PM   #3 (permalink)
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My car has the same codes now.
How to fix it
thanks
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Old 01-30-2013, 09:09 PM   #4 (permalink)
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Quote:
Originally Posted by nicholasluan View Post
My car has the same codes now.
How to fix it
thanks
My Suzuki Forenza has also the same codes now. Did you get information how to fix it?

thanks
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