NO.8 DOES NOT SHIFT TO 6GR [SJ6A-EL]


8	Does not shift to 6GR
DESCRIPTION	• Vehicle does not upshift from 5GR to 6GR even though vehicle speed is increased. • Vehicle does not shift to 6GR even though accelerator pedal is released in D range at 80 km/h {50 mph}.
POSSIBLE CAUSE	• Basically, TCC does not operate when the fail-safe is operating. Verify the DTC at first. If the TCC operates when driving at high speeds only, the malfunction (improper adjustment) is in the M range switch circuit or TR switch circuit. Caution • If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF. - C2 clutch, C3 clutch, B2 brake slippage, burnt • Line pressure low • Incorrect throttle position signal • Incorrect accelerator pedal position signal • Incorrect engine speed signal • Incorrect engine coolant temperature signal • Incorrect engine torque signal • VSS malfunction • Turbine sensor malfunction • Sensor GND malfunction - TFT sensor malfunction • Short or open circuit in wiring harness • Poor connection of connector • Sensor malfunction - TR switch malfunction • Selector lever adjustment incorrect • TR switch adjustment incorrect - Shift solenoid A, shift solenoid B, shift solenoid C, shift solenoid D, shift solenoid G, line pressure control solenoid malfunction • Short or open circuit in wiring harness • Poor connection of connector • Solenoid valve stuck - M range switch malfunction • Selector lever adjustment incorrect • Short or open circuit in wiring harness - Torque converter malfunction - Control valve body malfunction Note • Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION [SJ6A-EL].)


STEP	INSPECTION		ACTION
1	• With the ignition switch at the ON position. • Does the gear position indicator light indication correspond to selector lever position?	Yes	Go to the next step.
1		No	Go to No.27 "GEAR POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M RANGE", or No.28 "GEAR POSITION INDICATOR LIGHT ILLUMINATES IN D RANGE OR P, N, R POSITIONS".
2	• Access the following PCM PIDs using the M-MDS. - RPM - APP - TP - ECT - ENG_TRQ • Are PIDs value normal?	Yes	Go to the next step.
2		No	Inspect and repair suspected PID related part.
3	• Inspect the TFT sensor. (See TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR INSPECTION [SJ6A-EL].) • Is the TFT sensor normal?	Yes	Go to the next step.
3		No	Replace the TFT sensor.
4	• Drive the vehicle in D range and inspect following: - 1-2 shift up and down - 2-3 shift up and down - 3-4 shift up and down - 4-5 shift up and down - 5-6 shift up and down • Are all shift-up and shift-down possible?	Yes	Go to the next step.
4		No	No shift at all: • Go to No.7 "NO SHIFTING". Abnormal shift: • Go to No.9 "ABNORMAL SHIFTING".
5	• Stop the engine. • Inspect following solenoid. (See SOLENOID VALVE INSPECTION [SJ6A-EL].) - Shift solenoid A - Shift solenoid B - Shift solenoid C - Shift solenoid D - Shift solenoid F - Line pressure control solenoid • Are they normal?	Yes	Go to the next step.
5		No	Inspect for shift solenoid stuck. (See SOLENOID VALVE INSPECTION [SJ6A-EL].)
6	• Remove the torque converter. (See TORQUE CONVERTER REMOVAL/INSTALLATION [SJ6A-EL].) • Inspect the torque converter. • Is the torque converter normal?	Yes	Inspect the ATF condition. • If a large amount of metal specks are found, replace the transmission. (See AUTOMATIC TRANSMISSION REMOVAL/INSTALLATION [SJ6A-EL].) • If a large amount of metal specks are not found, replace the control valve body. (See CONTROL VALVE BODY REMOVAL [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
6		No	Replace the torque converter.
7	• Verify test results. - If normal, return to the diagnostic index to service any additional symptoms. - If malfunction remains, inspect the related Service Information and perform repair or diagnosis. • If the vehicle is repaired, troubleshooting completed. • If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.