10318315

TROUBLESHOOTING

Check for DTCs with a scan tool

When there is an abnormality in driving, follow the instruction below.

Connect the data link connector(DLC) to a scan tool(refer to the scan tool manual for details).

Turn or the ignition switch, power or the scan tool and choose '01.HYUNDAI VEHICLE DIAGNOSIS' on the 'INITIAL SCREEN'.

Select the vehicle model and system.

When the fault is detected, the relevant DTC will set.

If there is a fuel and emissions DTCs, first check the fuel and emission system as indicated by the DTC

Clear the DTC and data in the CLEAR MENU.

Drive the vehicle for seveual minites under the same conditions as those indicated by the data, and then recheck for a DTC.

If the A/T DTC returns, go to the DTC troubleshooting index. If the DTC does not return, there was an intermittent problem within the circuit. Make surt all pins and terminals in the circuit art tight.

INSPECTION CHART FOR THROUBLE SYMPTOMS

Trouble symptom		Probable cause
Communication with HI-SCAN is not possible If communication with the HI-SCAN is not possible, the cause is probably a defective diagnosis line or the TCM is not functioning.		- Malfunction diagnosis line - Malfunction of connector - Malfunction of the TCM
Driving impossible	Starting impossible Starting is not possible when the selector lever is in P or N range. In such cases, the cause is probably a defective engine system, torque converter or oil pump.	- Malfunction of the engine system - Malfunction of the torque converter - Malfunction of the oil pump
	Does not move forward If the vehicle does not move forward when the selector lever is shifted from N to D, 3, 2 or L range while the engine is idling, the cause is probably abnormal line pressure or a malfunction of the underdrive clutch or valve body.	- Abnormal line pressure - Malfunction of the underdrive solenoid valve - Malfunction of the underdrive clutch - Malfunction of the valve body
	Does not reverse If the vehicle does not reverse when the selector lever is shifted from N to R range while the engine is idling, the cause is probably abnormal pressure in the reverse clutch or low and reverse brake or a malfunction of the reverse clutch, low and reverse brake or valve body.	- Abnormal reverse clutch pressure - Abnormal low and reverse brake pressure - Malfunction of the low and reverse brake solenoid valve - Malfunction of the reverse clutch - Malfunction of the low and reverse brake - Malfunction of the valve body
	Does not move (forward or reverse) If the vehicle does not move forward or reverse when the selector lever is shifted to any position while the engine is idling, the cause is probably abnormal line pressure or a malfunction of the power train, oil pump or valve body.	- Abnormal line pressure - Malfunction of power train - Malfunction of the oil pump - Malfunction of the valve body
Malfunction when starting	Engine stalling when shifting If the engine stalls when the selector lever is shifted from N to D or R range while the engine is idling, the cause is probably a malfunction of the engine system, damper clutch solenoid valve, valve body or torque converter (damper clutch malfunction).	- Malfunction of the engine system - Malfunction of the damper clutch control solenoid valve - Malfunction of the valve body - Malfunction of the torque converter (Malfunction of the damper clutch)
Malfunction when starting	Shocks when changing from N to D and large time lag If abnormal shocks or a time lag of 2 seconds or more occur when the selector lever is shifted from N to D range while the engine is idling, the cause is probably abnormal underdrive clutch pressure or a malfunction of the underdrive clutch, valve body or idle position switch.	- Abnormal underdrive clutch pressure - Abnormal low and reverse brake pressure - Malfunction of the underdrive solenoid valve - Malfunction of the valve body - Malfunction of the idle position switch
Malfunction when starting	Shocks when changing from N to R and large time lag If abnormal shocks or a time lag of 2 seconds or more occur when the selector lever is shifted from N to R range while the engine is idling, the cause is probably abnormal reverse clutch pressure or low and reverse brake pressure, or a malfunction of the reverse clutch, low and reverse brake, valve body or idle position switch.	- Abnormal reverse clutch pressure - Abnormal low and reverse brake pressure - Malfunction of the low and reverse solenoid valve - Malfunction of the reverse clutch - Malfunction of the low and reverse brake - Malfunction of the valve body - Malfunction of the idle position switch
Malfunction when starting	Shocks when changing from N to D, N to R and large time lag If abnormal shocks or a time lag of 2 seconds or more occur when the selector lever is shifted from N to D range and from N to R range while the engine is idling, the cause is probably abnormal line pressure or a malfunction of the oil pump or valve body.	- Abnormal line pressure - Malfunction of the oil pump - Malfunction of the valve body
Malfunction when shifting	Shocks and running up If shocks occur when driving due to up shifting or down shifting and the transmission speed becomes higher than the engine speed, the cause is probably abnormal line pressure or a malfunction of a solenoid valve, oil pump, valve body or of a brake or clutch.	- Abnormal line pressure - Malfunction of each solenoid valve - Malfunction of the oil pump - Malfunction of the valve body - Malfunction of each brake or each clutch
Displaced shifting points	All points If all shift points are displaced while driving, the cause is probably a malfunction of the output shaft speed sensor, TPS or of a solenoid valve.	- Malfunction of the output shaft speed sensor - Malfunction of the throttle position sensor - Malfunction of each solenoid valve - Abnormal line pressure - Malfunction of the valve body - Malfunction of the TCM
Displaced shifting points	Some points If some of the shift points are displaced while driving, the cause is probably a malfunction of the valve body, or it is related to control and is not an abnormality.	- Malfunction of the valve body
Does not shift	No diagnosis codes If shifting does not occur while driving and no diagnosis codes are output, the cause is probably a malfunction of the transaxle range switch, or TCM	- Malfunction of the transaxle range - Malfunction of the TCM
Malfunction while driving	Poor a acceleration If acceleration is poor even if down shifting occurs while driving, the cause is probably a malfunction of the engine system or of a brake or clutch.	- Malfunction of the engine system - Malfunction of the brake of clutch
Malfunction while driving	Vibration If vibration occurs when driving at constant speed or when accelerating and deceleration in top range, the cause is probably abnormal damper clutch pressure or a malfunction of the engine system, damper clutch control solenoid valve, torque converter or valve body.	- Abnormal damper clutch pressure - Malfunction of the engine system - Malfunction of the damper clutch control solenoid valve - Malfunction of the torque converter - Malfunction of the valve body
Transaxle range switch system The cause is probably a malfunction of the inhibitor switch circuit, ignition switch circuit or a defective TCM.		- Malfunction of the transaxle range switch - Malfunction of the ignition switch - Malfunction of connector - Malfunction of the TCM
Idle position switch system The cause is probably a defective idle position switch circuit, or a defective TCM.		- Malfunction of the triple pressure switch - Malfunction of connector - Malfunction of the TCM
Triple pressure switch system The cause is probably a defective dual pressure switch circuit or a defective TCM.		- Malfunction of the triple pressure switch - Malfunction of connector - Malfunction of A/C system - Malfunction of the TCM
Vehicle speed sensor system The cause is probably a defective vehicle speed sensor circuit or a defective TCM.		- Malfunction of the vehicle speed sensor - Malfunction of connector - Malfunction of the TCM

DTC TROBLESHOOTING INDEX

TCM DTCs

DTC No.	DESCRIPTION	MIL *
P0703	BRAKE SWITCH CIRCUIT	OFF
P0707	TRANS.RANGE SNSR-LOW	OFF
P0708	TRANS.RANGE SNSR-HIGH	OFF
P0712	FLUID TEMP.SNSR CIRCUIT-LOW	OFF
P0713	FLUID TEMP.SNSR CIRCUIT-HIGH	OFF
P0715	INPUT SPEED SNSR CIRCUIT	OFF
P0720	OUTPUT SPEED SNSR CIRCUIT	OFF
P0731	GEAR 1 INCORRECT RATIO	OFF
P0732	GEAR 2 INCORRECT RATIO	OFF
P0733	GEAR 3 INCORRECT RATIO	OFF
P0734	GEAR 4 INCORRECT RATIO	OFF
P0736	REVERSE INCORRECT RATIO	OFF
P0741	Torque Converter Clutch Circuit STOCK OFF	OFF
P0742	Torque Converter Clutch Circuit STOCK ON	OFF
P0743	DCC Solenoid - Open or ground short (Torque Converter Clutch Circuit Electrical)	OFF
P0750	LR Solenoid - Open or ground short(SCSV "A" CIRCUIT MAL.)	OFF
P0755	UD Solenoid - Open or ground short(SCSV "B" CIRCUIT MAL.)	OFF
P0760	2ND Solenoid - Open or ground short(SCSV "C" CIRCUIT MAL.)	OFF
P0765	OD Solenoid - Open or ground short(SCSV "D" CIRCUIT MAL.)	OFF
P0885	A/T RELAY CIRCUIT MAL	OFF
P1500	VEHICLE SPEED SNSR CIRCUIT	OFF
P1603	CAN COMMUNICATION BUS OFF	OFF
P1604	NO ID From ECU	OFF
P1764	CAN MI-COM OR CIRCUIT MAL.	OFF

*: Malfunction Indication Lamp(MIL) will not be turned ON or blinked by only TCM DTCs. If MIL is on or blinking, check the fuel or emission system.

TCM PIN DESCRIPITION

Terminal Number		Wire Color	Description
C24-1 C224-1	1	G	SOLENOID VALVE(UD)
	2	P	POWER 1(SOLENOID VALVE)
	3	P	POWER 2(SOLENOID VALVE)
	4	-	-
	5	-	-
	6	-	-
	7	-	-
	8	-	AUTO CRUISE
	9	-	-
	10	-	-
	11	O	POWER(IG.1)
	12	B	EARTH FOR POWER
	13	B	EARTH FOR POWER
	14	Br	SOLENOID VALVE(OD)
	15	R/W	SOLENOID VALVE(DCC)
	16	W	SOLENOID VALVE(2ND)
	17	-	-
	18	-	-
	19	P	POWER FOR FLASH ROM
	20	-	-
	21	G/O	SHIFT POSITION SIGNAL
	22	-	-
	23	-	-
	24	O	POWER(IG.1)
	25	B	EARTH FOR POWER
	26	B	EARTH FOR POWER
C24-2 C224-2	1	W	SENSOR-INPUT SPEED
	2	W	SENSOR-OUTPUT SPEED
	3	-	-
	4	-	-
	5	-	-
	6	-	-
	7	-	-
	8	R/O	POWER FOR S-RAM
	9	-	-
	10	-	-
	11	-	-
	12	-	-
	13	Br	EARTH FOR SENSOR
	14	Gr	OIL TEMPERATURE SENSOR
	15	-	-
	16	-	-
C24-3 C244-3	1	-	-
	2	-	-
	3	O	CAN-'HIGH'
	4	G	CAN-'LOW'
	5	L	INHIBITOR SW.(P)
	6	P	INHIBITOR SW.(N)
	7	Y	SPT SELECT SW.
	8	W/B	SPT DOWN SW.
	9	W/B	STOP LAMP SW.
	10	-	-
	11	-	-
	12	P	SOLENOID VALVE(LR/DIR)
	13	G/B	K-LINE
	14	-	-
	15	-	-
	16	Br	INHIBITOR SW.(R)
	17	Y	INHIBITOR SW.(D)
	18	R/B	SPT UP SW.
	19	-	-
	20	-	-
	21	P	A/T CONTROL RELAY
	22	B	EARTH FOR SIGNAL

Terminal NO.		Wire Color	PIN Description
C130-2	1	-	-
	2	-	-
	3	-	-
	4	-	-
	5	W/B	Sports down switch
	6	P	Inhibiter switch(N)
	7	-	-
	8	-	-
	9	-	-
	10	-	-
	11	W	Auto cruise
	12	-	-
	13	R/B	Sports up switch
	14	Br	Inhibiter switch(R)
	15	-	-
	16	-	-
	17	-	-
	18	Br	Sensor ground
	19	W/B	Stop switch
	20	W	Output speed sensor
	21	Y	Sports select switch
	22	L	Inhibiter switch(P)
	23	-	-
	24	G/O	Shift signal(PWM)
	25	-	-
	26	Gr	Oil temperature sensor
	27	-	-
	28	W	Input speed sensor
C130-2	29	Y	Inhibiter switch(D)
	30	-	-
	31	-	-
	32	P	A/T relay
	33	B	Solenoid valve(OD)
	34	-	-
	35	R/B	Solenoid valve(DCC)
	36	P	Power source(SOL.)
	37	B	Ground1
	38	L	Solenoid valve(LR)
	39	W	Solenoid valve(2ND)
	40	G	Solenoid valve(UD)

ROAD TEST

No.	Condition	Operation	Judgment value	Check item
1	Ignition switch : OFF	Ignition switch (1) ON	Battery voltage (mV)	Control relay
2	● Ignition switch : ON ● Engine : Stopped ● Selector lever position : P	Selector lever position (1) P, (2) R, (3) N, (4) D	(1) P, (2) R, (3) N, (4) D	Transaxle range switch
		Accelerator pedal (1) Released (2) Half depressed (3) Depressed	(1) 400~1,000 mV (2)Gradually rises from (1) (3) 4,500~5,000 mV	Throttle position sensor
		Brake pedal (1) Depressed (2) Released	(1) ON (2) OFF	Brake switch
3	● Ignition switch : ST ● Engine : Stopped	Starting test with lever P or N range	Starting should be possible	Starting possible or impossible
4	Warming up	Drive for 15 minutes or more so that the automatic fluid temperature becomes 70~90°C	Gradually rises to 70~90°C	Oil temperature sensor
5	● Engine : Idling ● Selector lever position : N	A/C switch (1) ON (2) OFF	(1) ON (2) OFF	Triple pressure switch
		Accelerator pedal (1) Released (2) Half depressed	(1) ON (2) OFF	Idle position switch
			(1) 600~900 rpm (2) Gradually rises from (1)	Idle position switch
			(1) Data changes	Communication with engine-ECU
		Selector lever position (1) N→D (2) N→R	Should be no abnormal shifting shocks Time lag should be within 2 seconds	Malfunction when starting
6	Selector lever position : N (Carry out on a flat and straight road)	Selector lever position and vehicle speed 1. Idling in 1st gear (Vehicle stopped) 2. Driving at constant speed of 20 km/h in 1st gear 3. Driving at constant speed of 30 km/h in 2nd gear 4. Driving at 50 km/h in 3rd gear with accelerator fully closed 5. Driving at constant speed of 50 km/h in 4th gear	(2) 1st, (4) 3rd, (3) 2nd, (5) 4th	Shift condition
			(2) 0%, (4) 100%, (3) 100%, (5) 100%	Low and reverse solenoid valve
			(2) 0%, (4) 0%, (3) 0%	Underdrive solenoid valve
			(1) 100%, (2) 0%, (3) 100%	Second solenoid valve
			(2) 100%, (3) 100%, (4) 0%	Overdrive solenoid valve
			(1) 0km/h (4) 50km/h	Vehicle speed sensor
			(4) 1,800 ~ 2,100rpm	Input shaft speed sensor
			(4) 1,800 ~ 2,100rpm	Output shaft speed sensor
7	Selector lever position : D (Carry out on a flat and straight road)	1. Accelerate to 4th gear at a throttle position sensor output of 1.5V (accelerator opening angle of 30 %). 2. Gently decelerate to a standstill. 3. Accelerate to 4th gear at a throttle position sensor output of 2.5 V (accelerator opening angle of 50%). 4. While driving at 60 km/h in 4th gear, shif down to 3rd gear. 5. While driving at 40 km/h in 3rd gear, shift down to 2nd gear. 6. While driving at 20 km/h in 2nd gear, shift down to 1st gear.	For (1), (2) and (3), the reading should be the same as the specified output shaft torque, and no abnormal shocks should occur. For (4), (5) and (6), downshifting should occur immediately after the shifting operation is made.	Malfunction when shifting
				Displaced shift points
				Does not shift
				Does not shift from 1 to 2 or 2 to 1
				Does not shift from 2 to 3 or 3 to 2
				Does not shift from 3 to 4 or 4 to 3
8	Selector lever position : N (Carry out on a flat and straight road)	Move selector lever to R range drive at constant speed of 10km/h	The ratio between input and output shaft speed sensor data should be the same as the gear ratio when reversing.	Does not shift

TORQUE CONVERTER STALL TEST

This test measures the maximum engine speed when the selector lever is in the D or R position. The torque converter stalls to test the operation of the torque converter, starter motor, one-way clutch operation, the holding performance of the clutches, and brakes in the transaxle.

caution

Do not let anybody stand in front of or behind the vehicle while this test is being carried out

Check the automatic transmission fluid level and temperature, and the engine coolant temperature.

Fluid level : At the HOT mark on the oil level gauge

Fluid temperature : 80~100°C

Engine coolant temperature : 80~100°C

Prevent all the wheel from moving during the test.

Pull the parking brake lever up, with the brake pedal fully depressed.

Start the engine.

Move the selector lever to the "D" position, fully depress the accelerator pedal and take a reading of the maximum engine speed at this time.

caution

●

The throttle should not be left fully open for any more than five seconds.

●

If carrying out the stall test two or more times, move the selector lever to the "N" position and run the engine at 1,000 r/min to let the automatic transaxle fluid cool down before carrying out subsequent tests.

Move the selector lever to the "R" position and carry out tue same test again.

TORAUE CONVERTER STALL TEST CONCLUSION

Stall speed is too high in both "D" and "R" ranges

Low line pressure

Low &amp;amp; reverse brake(B) slippage

Stall speed is to high in "D" range only

Underdrive clutch(C) slippage

Stall speed is too high in "R" range only

Reverse clutch(A) slippage

Stall speed too low in both "D" and "R" ranges

Malfunction of torque converter(D)

Insufficient engine output

HYDRAULIC PRESSURE TEST

Warm up the engine until the automatic transaxle fluid temperature is 80-100°C.

Jack up the vehicle so that the wheels are free to turn.

Connect the special tool (oil pressure gauge) to each pressure discharge port.

Measure the hydraulic pressure at each port under the conditions given in the standard hydraulic pressure table, and check that the measured values are within the standard value ranges.

If a value is outside the standard range, correct the problem while referring to the hydraulic pressure test diagnosis table.

STANDARD HYDRAULIC PRESSURE TEST

Measurement condition			Standard hydraulic pressure kPa (psi)
Selector lever position	Shift position	Engine speed (rpm)	Underdrive clutch pressure (UD)	Reverse clutch pressure (REV)	Overdrive clutch pressure (OD)	Low and reverse brake pressure (LR)	Second brake pressure (2ND)	Damper clutch apply pressure (DA)	Damper clutch release pressure (DR)
P	-	2,500	-	-	-	260 ~ 340	-	-	220 ~ 360
R	Reverse	2,500	-	1,270 ~ 1,770	-	1,270 ~ 1,770	-	-	500 ~ 700
N	Neutral	2,500	-	-	-	260 ~ 340	-	-	220 ~ 360
D	1st gear	2,500	1,010 ~ 1,050	-	-	1,010 ~ 1,050	-	-	500 ~ 700
	2nd gear	2,500	1,010 ~ 1,050	-	-	-	1,010 ~ 1,050	-	500 ~ 700
	3rd gear	2,500	780 ~ 880	-	780 ~ 880	-	-	More than 750	450 ~ 650
	4th gear	2,500	-	-	780 ~ 880	-	780 ~ 880	More than 750	450 ~ 650

OIL SEAL LOCATION

HYDRAULIC PRESSURE TEST DIAGNOSIS TABLE

Trouble symptom	Probable cause
All hydraulic pressures are high	Incorrect transmission control cable adjustment
All hydraulic pressures are high	Malfunction of the regulator valve
All hydraulic pressures are low	Incorrect transmission control cable adjustment
	Malfunction of the oil pump
	Clogged oil filter
	Clogged oil cooler
	Malfunction of the regulator valve
	Malfunction of the relief valve
	Incorrect valve body installation
Hydraulic pressure is abnormal in "R" range only	Malfunction of the regulator valve
	Clogged orifice
	Incorrect valve body installation
Hydraulic pressure is abnormal in "3" or "4" range only	Malfunction of the regulator valve
	Clogged orifice
	Incorrect valve body installation
	Malfunction of the overdrive solenoid valve
	Malfunction of the overdrive pressure control valve
	Malfunction of the regulator valve
	Malfunction of the switch valve
	Clogged orifice
	Incorrect valve body installation
Only underdrive hydraulic pressure is abnormal	Malfunction of the oil seal K
	Malfunction of the oil seal L
	Malfunction of the oil seal M
	Malfunction of the underdrive solenoid valve
	Malfunction of the underdrive pressure control valve
	Malfunction of check ball
	Clogged orifice
	Incorrect valve body installation
Only reverse clutch hydraulic pressure is abnormal	Malfunction of the oil seal A
	Malfunction of the oil seal B
	Malfunction of the oil seal C
	Clogged orifice
	Incorrect valve body installation
Only overdrive hydraulic pressure is abnormal	Malfunction of the oil seal D
	Malfunction of the oil seal E
	Malfunction of the oil seal F
	Malfunction of the overdrive solenoid valve
	Malfunction of the overdrive pressure control valve
	Malfunction check ball
	Clogged orifice
	Incorrect valve body installation
Only low and reverse hydraulic pressure is abnormal	Malfunction of the oil seal I
	Malfunction of the oil seal J
	Malfunction of the low and reverse solenoid valve
	Malfunction of the low and reverse pressure control valve
	Malfunction of the switch valve
	Malfunction of the fail safe valve A
	Malfunction of check ball
	Clogged orifice
	Incorrect valve body installation
Only second hydraulic pressure is abnormal	Malfunction of the oil seal G
	Malfunction of the oil seal H
	Malfunction of the oil seal O
	Malfunction of the second solenoid valve
	Malfunction of the second pressure control valve
	Malfunction of the fail safe valve B
	Clogged orifice
	Incorrect valve body installation
Only reverse clutch hydraulic pressure is abnormal	Malfunction of the oil cooler
	Malfunction of the oil seal N
	Malfunction of the damper clutch control solenoid valve
	Malfunction of the damper clutch control valve
	Malfunction of the torque converter pressure control valve
	Clogged orifice
Pressure applied to non operating element	Incorrect valve body installation
	Incorrect transmission control cable adjustment
	Malfunction of the manual valve
	Malfunction of check ball
	Incorrect valve body installation