A/T - MIL ON/DTC P0740 Set
01-049May 15, 2001
Applies T0:
2001 Civic with A/T - See VEHICLES AFFECTED
MIL Comes On With A/T DTC P0740
SYMPTOM
The MIL comes on and A/T DTC P0740 (problem in lock-up control system) sets.
PROBABLE CAUSE
The paper material on the torque converter piston is deteriorating.
VEHICLES AFFECTED
CORRECTIVE ACTION
Flush the transmission and replace the torque converter. Test-drive the vehicle; if the MIL comes on, continue with normal troubleshooting.
PARTS INFORMATION
Torque Converter: P/N 26000-PLM-315, H/C 6773337
Drain Plug Washer: P/N 90471-PX4-000, H/C 3300936
REQUIRED MATERIALS
Honda ATF-Z1 (11.6 quarts):
P/N 08200-9001, H/C 6512628
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Failed Part: P/N 26000-PLM-305
H/C 6452353
Defect Code: 034
Contention Code: B99
Skill Level: Repair Technician
Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.
REPAIR PROCEDURE
1. Raise the vehicle on a lift.
2. Drain the ATF
3. Refill the transmission with Honda ATF-Z1.
4. Start the engine.
5. Press the brake pedal, move the shift lever to D, and release the brake pedal.
6. Press the accelerator pedal so the speedometer reads 50 mph. Make sure the transmission shifts through the first three lower gears and into 4th gear, and the torque converter locks up. Release the accelerator pedal.
7. Press the brake pedal to stop the front wheels.
8. Move the shift lever to R, and then to N. Release the brake pedal.
9. Repeat the shifting procedure (steps 5 through 8) four more times.
10. Turn off the engine.
11. Drain the ATF
12. Repeat steps 3 through 11 two more times.
13. Replace the torque converter (see the Automatic Transmission section of the 2001 Civic Service Manual).
NOTE:
This step does not require ATF cooler flushing.
14. Reinstall the drain plug with a new sealing washer.
15. Refill the transmission with Honda ATF-Z1.
16. Use the PGM Tester with SN131 or later software to clear any DTCs.
17. Do the idle learn procedure:
^ Make sure all electrical items (A/C, audio unit, defogger, lights, etc.) are turned off, then start the engine.
^ Let the engine warm up to its normal operating temperature (the cooling fan cycles twice).
^ Let the engine idle (throttle fully closed with all electrical items turned off) for 10 minutes.
18. Test-drive the vehicle to make sure the MIL does not come on. If the MIL comes on, continue with normal troubleshooting.
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