1999 Honda Accord

There is a TSB for this. MIL COMES ON WITH DTC P1457 TECHNICAL SERVICE BULLETIN Reference Number(s): 01-011, Date of Issue: June 26, 2001 Superceded Bulletin(s): 01-011, Date of Issue: March 6, 2001 Related Ref Number(s): 01-011 ARTICLE BEGINNING SYMPTOM The MIL is on, and DTC P1457 [leak detected in EVAP control system (EVAP control canister system)] is set. PROBABLE CAUSES The symptom could be the result of any of these causes:
An EVAP system component fails.
The PCM does a diagnostic test on the EVAP system before the primary heated oxygen sensor (HO2S) is active. If this happens on two consecutive driving cycles, the MIL comes on and DTC P1457 falsely sets.
The EVAP system depends on operation of the EVAP control canister vent shut valve for the diagnostic self-test. If the valve does not function properly, the MIL comes on and DTC P1457 sets. This condition can occur with vehicles normally driven in any of the states listed in the "Applies To" heading. Failure of this components does not affect the performance of the EVAP system. VEHICLES AFFECTED PCM Failure: 1998-99 Accord - L4 models with A/T EVAP Control Canister Vent Shut Valve Failure: 1998-99 Accord - All models normally driven in any of theses states: Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New York, North Dakota, Ohio, Pennsylvania, Vermont, or Wisconsin CORRECTIVE ACTION HONDA: 1998-99 Accord CATEGORY: Fuel/Emission APPLIES TO: 1998-99 Accord - See VEHICLES AFFECTED NOTE: Supersedes 01-011, dated March 6, 2001 MIL COMES ON WITH DTC P1457 -1999 Honda Accord LX Retrieve the DTC with the PGM Tester, and review the Freeze Data. Depending on whether the feedback condition of the primary HO2S reads "open" or "closed," take the appropriate action described in DIAGNOSIS. PARTS INFORMATION 1998 Accord L4 LX (KL) PCM : P/N 37820-PAA-L50, H/C 6286363 1998-99 Accord L4 LX/EX (KA) PCM: P/N 37820-PAA-L50, H/C 62863.63 1998-99 Accord L4 DX (KA) PCM: P/N 37820-PAB-A60, H/C 6286389 1998-99 Accord L4 DX (KL) PCM: P/N 37820-PAB-L60, H/C 6286405 1998 Accord L4 EX (KL) PCM: P/N 37820-PAA-L80, H/C 6286421 1999 Accord L4 LX/EX (KL) PCM: P/N 37820-PAA-L80, H/C 6286421 1998-99 Accord (KA/KL) EVAP Control Canister Vent Shut Valve: P/N 17310-S0X-A02, H/C 6197370 WARRANTY CLAIM INFORMATION In warranty: The normal warranty applies. WARRANTY CLAIM INFORMATION Failed Parts: P/N 37820-PAA-L73 H/C 5859889 Defect Code: 032 Contention Code: B03 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. DIAGNOSIS OP # Description FRT 123505 Retrieve the DTC. Store the immobilizer system key codes in the PCM. Write the DTC in the ECU field of the warranty claim form. 0.6 121100 Replace the PCM. 0.4 120136 Replace the EVAP control canister vent shut valve. 0.4 MIL COMES ON WITH DTC P1457 -1999 Honda Accord LX Use the PGM Tester, with SN122P or later software, to retrieve the DTC. Check the primary HO2S feedback condition. Data will be displayed as "open" or "closed".
If the primary HO2S feedback condition reads "closed" refer to S/B 99-074, Diagnosing DTC P1456 and DTC P1457, and if appropriate, to S/B 99-075, Troubleshooting DTC P1457, both filed under Fuel and Emissions. Make any needed repairs. If the vehicle is normally driven in any of the states listed in the "Applies To" heading, also go to REPAIR PROCEDURE B, and replace the EVAP control canister vent shut valve.
If the primary HO2S feedback condition reads "open", go to REPAIR PROCEDURE A, and replace the PCM. If the vehicle is normally driven in any of the states listed in the "Applies To" heading, also go to REPAIR PROCEDURE B, and replace the EVAP control canister vent shut valve. REPAIR PROCEDURE A 1998-99 ACCORD L4 (MODELS WITH A/T) 1. EX models only: Make sure you have the anti-theft code for the radio. 2. Write down your customer's radio station presets. 3. Disconnect the negative cable from the battery. 4. Remove and discard the PCM.

5. Install the appropriate new PCM. 6. Reconnect the negative battery cable. 7. EX models only: Enter the anti-theft code for the radio. 8. Enter your customer's radio station presets. Reset the clock. 9. Store the immobilizer system key codes in the PCM with the PGM Tester; see Service Bulletin 00-049, Immobilizer System (Type 2), filed under Body Electrical. PROCEDURE B 1998-99 ACCORD (MODELS NORMALLY DRIVEN IN ANY OF THE STATES LISTEN IN "APPLIES TO" HEADING) 1. Raise the vehicle on a lift. 2. Remove and discard the EVAP control canister vent shut valve and O-ring.

3. Install the new vent shut valve and O-ring. 4. Lower the vehicle.