Sonata GL V6-2.5L (1999)
Open the GDS program and select:
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VIN and "A/T"
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"Flight Record" and "Data Review"
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"Items List" (top right of screen) and select: "Vehicle speed" and "Shift position".
PCM/TCM DIAGNOSIS:
Confirm the PCM or TCM commanded each gear: 1, 2, 3, 4 and 5 (if equipped):
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If so, go to pages 3~6 and evaluate the upshift diagnosis for the related shift.
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If not, exchange a PCM or TCM from a properly operating vehicle and test again to determine if the PCM or TCM commanded each gear:
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If the condition is improved, replace the PCM or TCM
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If the condition is not improved, go to page 3~6 and evaluate the upshift performance.
1-2 UPSHIFT DIAGNOSIS:
Open the GDS program and select: VIN and "A/T", "Flight Record" and "Data Review"
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Select "Items List" (top right of screen) and select: "2nd Solenoid Duty", "Underdrive Solenoid Duty" and "Shift Position".
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Click the "+" or "-" buttons to choose 0.7 sec./Div or less.
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Move the cursor to the start of the shift and "Left click".
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Move the cursor to the end of the shift and "Right click".
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Read the 2nd solenoid elapsed time at the top right of the screen. If the 1-2 shift requires more than 2.0 seconds, exchange a PCM or TCM from a
properly operating vehicle and follow TSB 06-40-005, "Reset and Relearn Adaptive Values":
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If the condition is improved, replace the PCM or TCM
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If the condition is not improved, replace the transaxle.
NOTE:
The 2nd solenoid elapsed time is important; the shape of the graph is not.
2-3 UPSHIFT DIAGNOSIS: