EngineControls _ MIL ON?DTC's P2195/P2197 Stored
04-038October 11, 2011
Applies To:
2004 Accord V6 - ALL
MIL Comes On With DTC P2195 or P2197
(Supersedes 04-038, dated July 23, 2011, to update the information indicated by the black bars)
REVISION SUMMARY
*Under WARRANTY CLAIM INFORMATION, a flat rate time was changed.*
SYMPTOM
The MIL is on, and DTC P2195 (rear air fuel ratio sensor signal stuck lean) or P2197 (front air fuel ratio sensor signal stuck lean) is set.
PROBABLE CAUSE
The ECM/PGM software incorrectly interprets sensor inputs, causing the codes to set.
CORRECTIVE ACTION
Update the ECM/PCM software.
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Failed Part: P/N 37820-RDA-A04
H/C 7630544
Defect Code: 07201
Symptom Code: 03203
Skill Level: Repair Technician
REPAIR PROCEDURE
NOTE:
^ Before you update an ECM/PCM, make sure the battery in the vehicle is fully charged.
^ To prevent ECM/PCM damage, do not operate anything electrical (audio system, brakes, A/C, power windows, moonroof, etc.) during the update.
1. If not already done, load the May 2004 or later iN CD onto the iN master terminal. Loading instructions are included with the CD.
2. Update the ECM/PCM software (refer to Service Bulletin 01-026, Updating Control Units/Modules.
3. Warm up the engine to operating temperature, then shut if off.
4. Do the ECM/PCM RESET and the GKP PATTERN CLEAR with the HDS.
5. Do the ECM/PCM idle learn procedure:
^ Make sure all electrical items (A/C, audio, rear window defogger, lights, etc.) are off.
^ Turn the ignition switch to the ON (II) position for 30 seconds.
^ Start the engine, and let it idle (throllte closed and all electrical items off) for 10 minutes.
6. Do the low-rpm CKP pattern learn:
^ Test-drive the vehicle on a level road: With the A/T in second gear, or the M/T in second or third gear, decelerate (with the throttle fully closed) from an engine speed of 2,500 rpm down to 1,000 rpm.
^ Stop the vehicle, and put the transmission into Park or Neutral. Set the parking brake. Do not turn off the ignition switch.
7. Connect the HDS to the DLC, and check the status of PULSER F/B LEARN:
^ On the Selection Menu, select PGM-FI.
^ On the Mode Menu, select Data List.
^ Check the value of PULSER F/B LEARN.
^ If the value is Completed, go to step 7.
^ If the value is Not Completed, be sure the engine is at normal operating temperature (the ECT SENSOR (1) value is 176 or higher), and return to step 5.
8. Do the high-rpm CKP pattern learn:
NOTE:
The low-rpm CKP pattern learn must be completed before you do the high-rpm CKP pattern learn.
^ Test-drive the vehicle on a level road: With the A/T in first gear, or the M/T in first gear, decelerate (with the throttle fully closed) from an engine speed of 5,000 rpm down to 3,000 rpm.
^ Stop the vehicle, and put the transmission into Park or Neutral. Set the parking brake. Do not turn off the ignition switch.
9. Connect the HDS to the DLC (if not already connected), and do this:
^ On the Selection Menu, select PGM-FI.
^ On the Mode Menu, select Data List.
10. Check the value of PULSER F/B LEARN (HIGH RPM)
^ If the value is Completed, you are finished. Disconnect the HDS.
^ If the value is Not Completed, be sure the engine is at normal operating temperature (the ECT SENSOR (1) value is 176 or higher), and repeat steps 5 thru 8.
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