Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUZUKI2009EQUATOR SPORT, 4D PICKUP EXTRA CAB, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 14 (AUTOMATIC TRANSMISSION)DIAGNOSTIC INFORMATION AND PROCEDUREDTC P0741CIRCUIT/SYSTEM TESTING
2009 Suzuki Equator Sport, 4D Pickup Extra Cab, 4WD
Circuit/System Testing
2009 Suzuki Equator Sport, 4D Pickup Extra Cab, 4WDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
- Engine ON, apply the parking brake, select P (park) using the Shift Control.
- Observe the scan tool Transmission ISS parameter. The reading should be within 400-800 RPM.
- If the ISS parameter is not within the specified range, test or replace the Transmission Input Speed Sensor (ISS). Refer to the INPUT SPEED SENSOR REPLACEMENT procedure.
- Operate the vehicle in 3rd gear. Observe Gear Ratio parameter on the scan tool. The Gear Ratio parameter should not equal 2.84:1.
- If the Gear Ratio parameter equals 2.84:1 while in 3rd gear, test or replace the:
- 3-4, 4-5 shift solenoid valve assembly
- U1 shift valve
Refer to the CONTROL VALVE BODY ASSEMBLY DISASSEMBLE procedure.
- If all conditions test normal, test or replace the control valve body assembly. Refer to CONTROL VALVE BODY REPLACEMENT procedure.
- Perform a line pressure test. Refer to LINE PRESSURE CHECK procedure.
- Remove the Control valve body cover. Refer to CONTROL VALVE BODY COVER REMOVAL procedure.
- Inspect the inside of the control valve body cover for excessive sediment. There should not be excessive sediment.
- If excessive sediment is found inspect and replace as necessary the Torque converter assembly, Input shaft, and Fluid pump stator shaft assembly. Refer to TORQUE CONVERTER ASSEMBLY REMOVAL , FORWARD AND DIRECT CLUTCH ASSEMBLY ASSEMBLE and FLUID PUMP CLEANING AND INSPECTION procedures.
- If all conditions test normal, test or replace the transmission.
- Inspect the control valve body assembly for the following conditions. The conditions should not be found.
- Stuck lock up relay valve
- Stuck lock up control valve
- Stuck TCC check valve
- Stuck secondary regulator valve
- Stuck solenoid relay valve
- Stuck TCC lock up PC solenoid valve assembly
Refer to CONTROL VALVE REAR BODY DISASSEMBLE and MIDDLE CONTROL VALVE BODY DISASSEMBLE .
- If any of the above conditions are found, replace the valve body assembly. Refer to CONTROL VALVE BODY REPLACEMENT procedure.
- Verify that the control valve body has been serviced within the past 3 months.
- If the control valve body has not been serviced, replace the control valve body assembly. Refer to CONTROL VALVE BODY REPLACEMENT procedure.
- If all circuits and components test normal, replace the transmission.
- If all circuits and components test normal, replace the transmission.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.