Canada - A/T Controls - Harsh Shift/Multiple DTC's Set

GROUP
TRANSAXLE

NO.
02-40-004

DATE
JULY 12/02

MODEL
ACCENT (LC)

SUBJECT

AUTOMATIC TRANSAXLE DIODE CORROSION
IN CONTROL WIRING HARNESS (FIELD FIX)

This bulletin is to inform dealers of a procedure to repair a condition caused by corrosion of the ATM diode pins in the control wiring located behind the dash panel. The corrosion may be caused by water from the cowl top panel entering through the control wiring harness grommet into the dash panel area.

A corroded ATM diode may result in the following symptoms:

^ Diagnostic trouble code P0707 (Transaxle range switch - Open circuit)
^ Diagnostic trouble code P0708 (Transaxle range switch - Short circuit)
^ Diagnostic trouble code P1529 (TCM error- Invalid message)
^ Diagnostic trouble code P1586 (Encoding signal circuit not rational)
^ Harsh shift and transaxle held in 3rd gear fail-safe mode.

When you have verified that an Accent (LC) with these symptoms exists, follow the ATM diode replacement procedure listed below. Do not replace the automatic transaxle or control wiring harness. This repair is to be performed only on vehicles that have experienced one or more of the above described symptoms.

VEHICLES AFFECTED

All 2000, 2001 and 2002 Accents equipped with an automatic transaxle and manufactured from Job#1 through April 30, 2002.

SERVICE PROCEDURE

1. Open the hood.





2. Remove the two 10 mm control wiring grommet nuts on the dash panel.





3. Pull out the control wiring grommet.





4. Locate the ATM diode wrapped in yellow tape and loosen the yellow tape from the control wiring.





5. Disconnect the ATM diode using long nose pliers and discard it.





6. Clean the diode connector (female side) using a solvent such as isopropyl or industrial alcohol.





7. Apply dielectric grease (P/N 084NM-26003) to both sides of the diode connector terminal.

8. Insert a new ATM diode into the diode connector.





9. Apply electrical tape around the diode connector as shown and re-apply the yellow tape which was loosened in step #4.





10. Apply electrical tape around the control wiring harness within the range as shown.

11. Reinstall the control wiring grommet in the dash panel hole and tighten the two 10 mm grommet mounting nuts.

Note:
Make sure the rubber grommet is securely installed.

12. Close the hood.

13. Check for diagnostic trouble codes using the Hi-Scan Pro and erase if necessary.





PARTS INFORMATION

WARRANTY INFORMATION:

Normal warranty policies and procedures apply.





CLAIMING INFORMATION