Have a 96 suzuki vitara. check engine light came on. code from computer said TCC sol short. still drives good but sometimes konks out when idling. can anyone narrow the problem for me? not sure if its a major transmission problem or just a fluid and filter change or the solenoid needs replacing. thanx alot

The check engine light is because all check engine light codes are caused by components that affect emissions. It's not actually an engine problem, it's a problem with either your O2 sensor, MAF sensor, fuel/air ratio, pyrometer, or exhaust.

obd2 scanner

Start checking fuel filter, fuel pump and injectors.

Both codes (obviously) point to transmission related problems. The DTC P0700 means Transaxle Control System Fault Conditions and the DTC P0742 code means Torque Converter Clutch (TCC) - Stuck On.

The DTC P0700 code is for information only and the next step is to check for transaxle codes in the Transaxle Control Module (TCM). So you'll have to have the dealer or another qualified shop/technician pull the transaxle codes from the TCM and go from there.

On DTC P0742, Torque Converter Clutch Solenoid Valve (TCC Sol. Valve) is a normally-open exhaust valve that is used with the Torque Converter Clutch Pulse Width Modulation Solenoid Valve (TCC PWM Sol. Valve) in order to control fluid acting on the converter clutch apply valve. The TCC Sol. Valve attaches to the transmission case assembly extending into the pump cover. When grounded (energized) by the Vehicle Control Module (VCM), the TCC Sol. Valve stops converter signal oil from exhausting. This causes converter signal oil pressure to increase and move the converter clutch apply valve against spring force and into the apply position. In this position, release fluid is open to an exhaust port and converter feed fluid fills the apply fluid circuit. The converter feed fluid applies the TCC. When the VCM no longer provides a ground path, the TCC Sol. Valve de-energizes and apply fluid exhausts, releasing the TCC.

Condition: Some customers may comment that the transmission shifts hard, a shudder/chuggle is felt on deceleration or the Service Engine Soon (SES) light is illuminated.

A technician may find DTC P0742 set. Customers with 4T80E transaxles may also comment on a "bump" feeling at approximately 61-68 km/h (38-42 mph) when they lift and then tip into the throttle. There may also be a concern of whine noise in 3rd or 4th gear with or without the Service Engine Soon light/message displayed and with DTC P0742 set.

Correction:
Note: DO NOT REPLACE THE VALVE BODY AND PUMP ASSEMBLY.

Important: This test is not applicable to the 4T80E transmission. Instead, replace the TCC PWM solenoid on vehicles with a 4T80E transmission using published procedures for the vehicle being serviced.

Perform one of the following diagnostics:
• Test drive the vehicle with the Tech 2® installed, Monitor TCC Release Pressure. The Status will be YES until TCC applies and then the display will read NO. If during acceleration the status remains NO and the upshifts are harsh and during deceleration the vehicle shudders during downshifts, suspect the TCC PWM solenoid.
• With the Tech 2 installed in the vehicle, start the engine. Build the vehicle on the Tech 2®. Apply and firmly hold the service brake. Place the transaxle in D4 and command Drive 3 with the Tech 2®. If the engine stumbles and/or stalls, suspect the TCC PWM solenoid.

Replace the TCC PWM solenoid using published procedures for the vehicle being serviced.

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Jose.

Your vitara needs the throttle adjustment its a quick solution to your problem otherwise you should get you vitara tuned.

Did you resolved the problem?

I also have a Grand Vitara, and just replaced the battery and once I turn the vehicle on, it will shut off.

What it is going on?

Thanks

Take the car to an autoparts store and have them scan the computer for any fault codes stored. The check engine light is to alert you that the computer has noted a fault in one of the car's systems. Getting the codes will show what the computer has noted and curb the need for speculation. Most parts stores will perform the scan for free. Hope this helped and best wishes.

The ignition coils are the usual culprit, they fail when hot, sometimes the module itself is bad, you need an Ignition specialist here, don't Shotgun (Replace parts till it runs)

The check engine light is an indication that the computer has detected a fault in one of the car's systems. Take the car to an autoparts store and have them scan the computer for fault codes. The codes will show what faults the computer has identified. Most parts stores will do the scan for free. This will help narrow down the cause of your problem and help you make a determination on how you want to proceed. Hope this helped and best wishes.

Check the passanger side floor board for moisture this could indicate a bad heater core. Then I would check the engine oil and make sure its not milky looking (head gasket). make sure when you fill it let it run with the cap open with you looking into the cap to be sure is circulating and not vapor locked (air pocket)
hope this helps

check for codes, p0300 is multiple cylinder misfire, p0301-p0304 is for cylinder 1 through 4, could be bad plug or coil, try switching and see if problem moves to different cylinder