Engine Controls - MIL ON/DTC P1149 Set
01-031April 17, 2001
Applies To:
1998-00 Accord L4 - ALL
MIL Comes On With DTC P1149
SYMPTOM
The MIL is on, and DTC P1149 (air/fuel ratio sensor range/performance problem) is set.
PROBABLE CAUSE
Under certain driving conditions, the ECM/PCM sets a false DTC P1149.
CORRECTIVE ACTION
Replace the ECM/PCM.
PARTS INFORMATION
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Failed Part: P/N 37820-PAA-L80
H/C 6286421
Defect Code: 072
Contention Code: C99
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
Connect the PGM Tester to the vehicle's DLC (data link connector), and check for DTCs.
^ If DTC P1149 is stored, go to REPAIR PROCEDURE.
^ If another DTC is stored, go to the appropriate troubleshooting procedure in the service manual.
REPAIR PROCEDURE
Replace the ECM/PCM with the appropriate part listed under PARTS INFORMATION. For replacement information, see How to Remove the ECM/PCM for Testing on page 11-4 of the 1998-01 Accord Service Manual.
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