DIAGNOSITC TORUBLE CODES (INSPECTION PROCEDURE)
Check the Diagnostic Trouble Codes
- Turn the ignition switch to OFF.
- Connect the Hi-scan tool to the DLC connector for diagnosis.
- Turn the ignition switch to ON.
- Check the diagnostic trouble codes using the Hi-scan tool.
- Read the output diagnostic trouble codes. Then follow the remedy procedures according to the "DIAGNOSTIC TROUBLE CODE DESCRIPTION" on the following pages. NOTE: A maximum of 10 diagnostic trouble codes (in the sequence of occurrence) can be stored in the Random Access Memory (RAM) incorporated within the control module. The same diagnostic trouble code can be stored one time only. If the number of stored diagnostic trouble codes or diagnostic trouble patterns exceeds 10, already stored diagnostic trouble codes will be erased in sequence, beginning with the oldest. Do not disconnect the battery until all diagnostic trouble codes or diagnostic trouble patterns have been read out, because all stored diagnostic trouble codes or diagnostic trouble patterns will be cancelled when the battery is disconnected. All diagnostic trouble codes are deleted from memory the 200th time the ATF temperature reaches 50°C (122°F) after memorization of the most recent diagnostic code.
- Delete the diagnostic trouble code.
- Disconnect the Hi-scan tool. NOTE: DTC cleaning should only be done with the scan tool.
Diagnostic trouble code table
| No. | Code | Item | Remark |
|---|---|---|---|
| 1 | P0605 | INTERNAL CONTROL MODULE READ OLNY MEMORY (ROM) ERROR | AT-53 |
| 2 | P0707 | TRANSAXLE RANGE SWITCH CIRCUIT NO INPUT | AT-55 |
| 3 | P0708 | TRANSAXLE RANGE SWITCH CIRCUIT MULTI - INPUT | AT-61 |
| 4 | P0711 | TRANSAXLE FLUID TEMPERATURE SENSOR RATIONALITY | AT-64 |
| 5 | P0712 | TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT LOW INPUT | AT-71 |
| 6 | P0713 | TRANSAXLE FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT | AT-73 |
| 7 | P0716 | A/T INPUT SPEED SENSOR (PG-A)-TOO MAX | AT-75 |
| 8 | P0717 | A/T INPUT SPEED SENSOR (PG-A) CIRCUIT - OPEN or SHORT (GND) | AT-82 |
| 9 | P0722 | A/T OUTPUT SPEED SENSOR (PG-B) CIRCUIT - OPEN or SHORT (GND) | AT-84 |
| 10 | P0731 | GEAR 1 INCORRECT RATIO | AT-90 |
| 11 | P0732 | GEAR 2 INCORRECT RATIO | AT-98 |
| 12 | P0733 | GEAR 3 INCORRECT RATIO | AT-105 |
| 13 | P0734 | GEAR 4 INCORRECT RATIO | AT-112 |
| 14 | P0741 | TORQUE CONVERTER CLUTCH STUCK OFF | AT-117 |
| 15 | P0742 | TORQUE CONVERTER CLUTCH STUCK ON | AT-122 |
| 16 | P0743 | TCC CONTROL SOLENOID VALVE CIRCUIT - OPEN or SHORT (GND) | AT-125 |
| 17 | P0745 | PRESSURE CONTROL SOLENOID VALVE-A CIRCUIT - OPEN or SHORT (GND) | AT-130 |
| 18 | P0750 | SHIFT CONTROL SOLENOID VALVE-A CIRCUIT - OPEN or SHORT (GND) | AT-135 |
| 19 | P0755 | SHIFT CONTROL SOLENOID VALVE-B CIRCUIT - OPEN or SHORT (GND) | AT-139 |
| 20 | P0760 | SHIFT CONTROL SOLENOID VALVE-C CIRCUIT - OPEN or SHORT (GND) | AT-143 |
| 21 | P0775 | PRESSURE CONTROL SOLENOID VALVE-B CIRCUIT - OPEN or SHORT (GND) | AT-147 |
| 22 | P1709 | KICKDOWN SERVO SWITCH CIRCUIT - OPEN or SHORT | AT-152 |
| 23 | U0001 | CAN BUS OFF | AT-159 |
| 24 | U0100 | CAN TIME OUT | AT-160 |
DIAGNOSTIC TROUBLE CODE CHART
Note. D/C : Damper clutch PG-A : Input shaft rotation speed sensor PG-B : Output shaft rotation speed sensor PCSV : Pressure control solenoid valve SCSV : Shift solenoid valve
Check the control system (using the Hi-scan tool)
| Diagnosis items | Checking procedures | Probable cause | |
|---|---|---|---|
| Check conditions | Normal value | ||
| Fluid temperature sensor | Engine doesn't operate before starting | Equivalent to outside air temperature | Malfunction of the fluid temperature sensor or the circuit harness |
| While warming up engine | Gradual increase | ||
| After warming up engine | 80~110°C (176~230°F) | ||
| Kickdown servo switch | "L" range : Idling | ON | Malfunction of the kickdown servo adjustment Malfunction of the kickdown servo switch or the circuit harness Malfunction of the kickdown servo system |
| "D" range :1st or 3rd gear | ON | ||
| "D" range :2nd or 4th gear | OFF | ||
| Ignition signal Engine rpm | "N" range: Idling | 650-900rpm | Malfunction of the ignition system Malfunction of the ignition signal pick-up circuit |
| "N" range, 2500rpm (Tachometer) | 2400-2600rpm | ||
| Idling switch | Accelerator pedal fully released | ON | Malfunction of the TPS adjustment Malfunction of the TPS or the circuit harness |
| Press accelerator pedal slightly | OFF | ||
| Air conditioning relay signal | "D" range: Air conditioning ON | ON | Malfunction of the air conditioning power relay circuit harness |
| "D" range: Air conditioning OFF | OFF | ||
| Transaxle range switch | "D" range: Idling | C (creep) | Malfunction of the TCM Malfunction of the idling switch system Malfunction of the inhibitor switch system Malfunction of the TPS system |
| "L" range: Idling | 1st gear | ||
| "2" range: 2nd gear | 2nd gear | ||
| "D" range: Overdrive switch is turned OFF, 3rd gear | 3rd gear | ||
| "D" range: Overdrive switch is turned ON, 4th gear | 4th gear | ||
| Pulse generator-A Turbine rpm | "D" range: Engine stopped | 0rpm | Malfunction of the pulse generator-A or the circuit harness Incoming noise from outside |
| "D" range:Driving at 50km/h (31mph) in 3rd gear | 1600~2000rpm | ||
| "D" range:Driving at 50km/h (31mph) in 4th gear | 1100~1400rpm | ||
| Pulse generator-B Output shaft RPM sensor | "D" range: Engine stopped | 0rpm | Malfunction of the pulse generator-B or the circuit harness Incoming noise from outside |
| "D" range:Driving at 50km/h (31mph) in 3rd gear | 1600~2000rpm | ||
| "D" range:Driving at 50km/h (31mph) in 4th gear | 1600~2000rpm | ||
| Overdrive switch | Overdrive switch is turned ON | OD:ON | Malfunction of the overdrive switch or the circuit harness |
| Overdrive switch is turned OFF | OD:OFF | ||
| Inhibitor switch | Shift select lever to "P" range | P | Malfunction of the inhibitor switch adjustment Malfunction of the inhibitor switch or the circuit harness Malfunction of the manual control cable |
| Shift select lever to "R" range | R | ||
| Shift select lever to "N" range | N | ||
| Shift select lever to "D" range | D | ||
| Shift select lever to "2" range | 2 | ||
| Shift select lever to "L" range | L | ||
| Vehicle speed sensor | Keep vehicle stopped | 0km/h | Malfunction of the vehicle speed sensor if high speed signal is delivered while vehicle is stopping In other cases, malfunction of the vehicle speed sensor or circuit harness |
| Driving at 30km/h (19mph) | 30km/h (19mph) | ||
| Driving at 50km/h (31mph) | 50km/h (31mph) | ||
| Pressure control solenoid valve duty (PCSV duty) | "D" range : Idling | 60~80% | When accelerator pedal is slightly pressed while idling in "D" range, duty should become100% Malfunction of the TCM Malfunction of the TPS system Malfunction of the idling switch system |
| "D" range: 1st gear | 100% | ||
| "D" range: During shift | Varies with condition | ||
| Damper clutch slip rpm Turbine rpm | "D" range: 3rd gear, 1500rpm (Tachometer) | 200~300rpm | Malfunction of the damper clutch Malfunction of the ignition signal wire or pulse generator-B system Abnormality transaxle fluid pressure Malfunction of the damper clutch solenoid valve |
| "D" range: 3rd gear, 3500rpm (Tachometer) | 0rpm | ||
| DCCSV duty | "D" range: 3rd gear, 1500rpm (Tachometer) | 0% | Malfunction of the TCM Malfunction of the TPS system Malfunction of the pulse generator-B system |
| "D" range: 3rd gear, 2500rpm (Tachometer) | Varies with load | ||
CONTROL SYSTEM CHECK CHART (USING HI-SCAN TOOL)
Fluid leaks inspection
Check for leaks from the transmission. If there are leaks, it is necessary to repair or replace O-ring, seal packings, oil seals, plugs or other parts.
Scheme 10
Scheme 11
- Park the vehicle at even straight surface.
- Before removing the oil level gauge, wipe all contaminants from around the oil level gauge.
- Set the select lever to the "P" position and engage the parking brake and then start the engine.
- Drive the vehicle until the fluid reaches normal.(80~90°C (176~194°F))
- Move the select lever through all positions. This will fill the torque converter with transaxle fluid. Set the select lever to the "N" (Neutral) position.
- Check that the fluid level is the "HOT" mark on the oil level gauge. If fluid level is low, add automatic transaxle fluiduntil the level reaches the "HOT" mark. Automatic transaxle fluid : GENUINE DIAMOND ATF SP-III or SK ATF SP-III Quantity: 6.1 I (6.4 US qt, 5.4 lmp.qt) NOTE: Low fluid level can cause a variety of abnormal conditions because it allows the pump to take in air along with fluid. Air trapped in the hydraulic system forms bubbles, which are compressible. Therefore, pressures will be erratic, causing delayed shifting, slipping clutches and brakes, etc. Improper filling can also raise fluid level too high. When the transaxle has too much fluid, gears churn up foam and cause the same conditions which occur with low fluid level, resulting in accelerated deterioration of automatic transaxle fluid. In either case, air bubbles can cause overheating, and fluid oxidation, which can interfere with normal valve, clutch, and brake operation. Foaming can also result in fluid escaping from the transaxle vent where it may be mistaken for a leak. Also check the condition of the transaxle fluid. If the fluid smells as if it is burning, it means that the fluid has been ontaminated by fine particles from the bushes and friction material, a transaxle overhaul may be necessary. Inspect the condition of fluid on the oil level gauge. For the detail check, drain some of the oil fluid out of the pump and then inspect the condition of the oil fluid. After checking, insert the oil level gauge into the oil filler tube securely. When new, automatic transaxle fluid should be red, The red dve is added so the assembly plant can identify it as transaxle fluid and distinguish it from engine oil or antifreeze. The red dve, which is not an indicator of fluid quality, is not permanent. As the vehicle is driven the transaxle fluid will begin to look darker. The color may eventually appear light brown. But, the transaxle should be overhauled under the following conditions. If there is a "burning" door. If the fluid the color has become noticeably blacker. If there is a noticeably excessive amount of metal particle in the fluid.
Scheme 12
- Warm up the engine until the automatic transaxle fluid temperature is 80~100°C (176~212°F).
- Jack up the vehicle so that the wheels are free to turn.
- Connect the engine tachometer.
- Connect the oil pressure gauge (09452-21500) and the oil pressure gauge adapter (09452-21002, 09452-21001) to each pressure discharge port. But use the gauge (30kg/cm 2 ) when measuring the reverse pressure, front clutch pressure and low & reverse brake pressure.
- If a value is outside the standard range, correct the problem while referring to the «HYDRAULIC PRESSURE TEST»(ref-378934-S25562559192010113000000) diagnosis table.
STANDARD HYDRAULIC PRESSURE TEST
| No. | Measurement Condition | Standard hydraulic pressure kpa (kg/cm 2 , psi) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Select lever position | Engine speed (rpm) | Shift position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| Reduction pressure | Servo apply pressure | Rear clutch pressure | Front clutch pressure | End clutch pressure | Low & reverse brake pressure | Torque converter pressure | Damper clutch pressure | ||||
| 1 | N | Idling | Neutral | 402-422 (4.1-4.3, 58-61) | |||||||
| 2 | D (switch ON) | 2,500 | 4th gear | 402-422 (4.1-4.3, 58-61) | 853-893 (8.7-9.1, 124-129) | 834-873 (8.5-8.9, 121-127) | 626-687 (6.4-7.0, 91-96) D/C ON | ||||
| 3 | D | 2,500 | 3rd gear | 402-422 (4.1-4.3, 58-61) | 844-863 (8.6-9.1, 122-128) | 628-687 (6.4-7.0, 122-123} | 324-333 (B.4-8.B. 119-125) | 844-883 (8.6-9.1, 122-1 28) | 628-687 (64-7.0, 91-96) D/C ON | ||
| 4 | D | 2,500 | 2nd gear | 402-422 (4.1-4.3, 58-61) | 853-893 (8.7-9.1, 124-129) | 844-883 (8.6-9.0, 122-128) | 628-687 (6.4-7.0, 91-96) D/C ON | ||||
| 5 | L | 1,000 | 1st gear | 402-422 (4.1-4.3, 58-61) | 844-883 (8.6-9.0), 122-128) | 343-520 (3.5-5.3, 50-75) | 422-480 (4.3-4.9, 61-70) | 235-275 (2.4-2.8, 34-40) D/C OFF | |||
| 6 | R | 2,500 | Reverse | 441-451 (4.5-4.7, 64-67) | 1815-1913 (18.5-19.5, 263-277) | 1815-1913 (18.5-19.5, 263-277) | 432-490 (4.4-5.0, 63-71) | 256-343 (2.7-3.5, 38-50) D/C OFF | |||
STANDARD HYDRAULIC PRESSURE TEST CHART
Note. "-" is 0.2 (0.3) kg/cm 2 or less and "()" is the reverse. SW-ON : Turn the overdrive control switch ON. SW-OFF : Turn the overdrive control switch OFF. The hydraulic pressure may be more than standard value at the ambient temperature.
Scheme 13
Scheme 14
- Disconnect the drive shaft from the transaxle.
- Using a flat-tip (-) screwdriver, remove the oil seal (A).
- Apply a coating of the transaxle fluid to the lip of the oil seal.
- Using the special tool (09431-21200), tap the drive shaft oil seal into the transaxle.