MIL Lamp On, DTC 15 Oxygen Sensor Set

91mazda03

Bulletin No. 013/91
Issued 8/13/91
Revised


Category F


Applicable Models 1990 -'91 323/Protege


Subject "MIL" CODE "15" WHEN COLD


DESCRIPTION

Severe cold temperatures may cause the "MIL" lamp to come on for a moment, after a cold start, during engine warm up. This may be due to delayed response time of the oxygen sensor.

If you encounter a customer complaint regarding this matter, use a self-diagnostic checker to confirm that a code "15" exists. If it does, replace the engine control unit (ECU) with a modified one from the rebuild program.

Figure 1:

Modified ECU serial numbers begin with J11270. Figure 1.


VIN OF PRODUCTION CHANGE

1990-'91 323 JM1BG232*M0204093 July 13, 1990
1990-'91 Protege SOHC 2WD JM1BG224*M0207269 July 23, 1990
1990-'91 Protege SOHC 4WD JM1BG228*M0247858 December 21, 1990
1990-'91 Protege DOHC JM1BG226*M0202411 July 8, 1990


PARTS INFORMATION

PART NUMBER DESCRUMON QTY APPLICABLE MODEL

B61K 18 881R Remanufactured ECU 1 1990-'91 323

BPOL 18 881R Remanufactured ECU 1 1990-'91 Protege SOHC 2WD

BP47 18 881R Remanufactured ECU 1 1990-'91 Protege SOHC 4VM

BP10 18 881R Remanufactured ECU 1 1990-'91 Protege DOHC
Up to JM1BG226 * M0237635

ZPA5 18 881R Remanufactured ECU 1 1991 Protege DOHC
From JM1BG226 * M0237636

NOTE:

^ These parts are included in the rebuilt ECU program. There is a limited supply of these ECU's. Please order this part on an as needed basis from your servicing parts distribution center.
^ The suffix "R" at the end of the part numbers denotes remanufactured units. Applicable core charges are not reimbursed through warranty.


WARRANTY INFORMATION

Warranty Type Code: A
Customer Comment Code: 62
Damage Code: 99
Part No. of Main Cause: * * * * 18 881R (applicable remanufactured ECU)
Quantity: 1
Operation No: F0812XRX
Labor Hour: 0.4 Hrs.