A/T - MIL ON/Erratic Shifting/Multiple DTC's Set
Group: TRANSAXLENumber: 03-40-006
Date: MAY, 2003
Model: 1999-2003 SONATA, 2001-03 ELANTRA, SANTA FE & XG, 2003 TIBURON
Subject:
ATA SOLENOID DIAGNOSTIC TROUBLE CODES P0740, P0741, P0742, P0743, P0750, P0755, P0760, P0765, P0770
This TSB supersedes TSB # 02-40-026 to include repair information for DTCs P0741 and P0742.
DESCRIPTION:
Incorrect operation of the transaxle solenoids may result in the following symptoms.
^ Erratic shift
^ Transaxle held in 3rd gear Fail-Safe
^ Diagnostic Trouble Codes P0740, P0741, P0742, P0743, P0750, P0755, P0760, P0765, P0770
^ MIL illuminated
NOTE:
Do NOT replace the transaxle for solenoid codes listed as open/short. Instead, follow the repair procedure shown below.
REPAIR PROCEDURE:
1. Using a Hi-Scan Pro, check for DTC in both the "Engine" and "Automatic Transaxle" menus. Record the DTC and description.
2. Disconnect the connectors between the solenoid and TCM. Check for bent pins or pins not fully inserted in the connector. Repair as necessary.
NOTE:
Clean connector pins with a contact cleaner listed below, or equivalent:
^ NAPA Electronic Cleaner, P/N 765-1843
^ MOPAR MP-50 Electrical Contact Cleaner, P/N 04549626
^ Permatex Electrical Contact Cleaner, P/N 24379 or equivalent.
3. Check the wiring harness between the TCM and transaxle for a damaged wire or a short circuit to ground. If so, repair or replace the ECM control harness, P/N 914XX-XXXXX.
4. Check the harness inside the transaxle oil pan for a short Circuit to ground. Replace the harness if damage is found or if three or more solenoid DTC are found in Step 1. (Refer to TSB # 02-40-009 for instructions).
5. Refer to the DTC recorded in Step 1 and follow the repair procedure shown and below:
REPLACING THE SOLENOIDS:
6. Remove the battery.
7. Drain the radiator. Remove the lower radiator hose from the radiator.
8. Drain. the ATF.
9. Remove the valve body cover from the transaxle.
10. Refer to the DTC recorded in Step 1 and replace the related solenoid according to the diagram shown. Tighten the bolts to 4-5 lb.ft (50-70 kg.cm). Go to step 11.
11. Apply Permatex or Hyundai Ultra Gray Gasket Sealer, P/N 00231-13800 to the valve body cover and reinstall the cover. Tighten the bolts to 6-7 lb.ft (80-100 kg.cm).
12. Add approximately five quarts of SPIII ATF and check the level with the engine idling in Neutral. Recheck the ATF level when the ATF is at normal operating temperature (70-100°C, 159-212°F).
13. Clear the codes and test drive the vehicle for two driving cycles (two key-on to key-off driving cycles, including 1-2-3-4 upshifts and 4-3-2-1 downshifts). If the DTC returns, perform the repairs shown.
PARTS INFORMATION
WARRANTY INFORMATION
DTC INFORMATION