Protege L4-1839cc 1.8L DOHC (1990)
Engine Control Module: Technical Service Bulletins
MIL Lamp On, DTC 15 Oxygen Sensor Set
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:
