GM C3 ECM Crossreference

Last update: October 31, 2000

C3 stands for Computer Command Control. This name applies to all GM engine computers, so in a sense, they all are C3's. However, C3 is generally accepted to mean the generation of ECMs which contain some built-in non-removable ROM and a removable EPROM/PROM/ROM containing the application specific calibration.

This page does not cover the newer generations of ECMs. It also does not cover any carburetor ECMs. Items in italics are unverified.

Learn how to dump the built in mask ROM.

These ECMs use N82S181 1Kbyte fusible-link PROMs:

1225550
1225570
1225610

1226026
1226100
1226430

1226458
1226460

These two ECMs use TMS2532 4Kbyte EPROMs:

1226156

1226864

These ECMs use 2732 4Kbyte EPROMs:

1226459
1226461
1226867
1226868
1226869
1226870
1226948
1227057
1227065
1227137
1227148
1227151
1227153

1227170
1227302
1227429
1227746
1227747
1227783
1227784
1227886
1228062
1228063
1228746
1228747
1228838

1228934
16135320
16136965
16143900
16144288
16146299
16149405
16152630
16156480
16171199
16196346
16196391
16196396

An incomplete list of Cadillac ECMs:

1226462

1226930

1227056

Car ECM selection by model year and engine type:

1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993

1.8 OHC L4 TBI “O” LH8 1225610 1226100 1226156 1226864 1226864

1.8 OHC L4 PFI turbo “J” LA5 1226460 1226460 1227151

2.0 L4 TBI “P” LQ5 1226026 1226026
1226458 1226867 1226867

2.5 L4 TBI “R” LR8 1225570
1225610 1226100
1226156 1226156 1226864 1226864

2.5 L4 TBI “2” LQ9 1225570
1225610 1226100 1226156 1226864 1226864

2.5 L4 TBI “U” L68 1226864 1226864

2.8 V6 PFI “S” LB8 1226870 1226870
1227302 1227302 1227302 1227302

2.8 V6 PFI “W” LB6 1226870 1226870
1227302

2.8 V6 PFI “9” L44 1226869 1227170 1227170 1227170

1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993

3.0 V6 PFI “L” LN7 1226461
1226948 1227153 1227784 1227784

3.8 V6 PFI “3” LN3 1226461 1226461
1226948
1227065

3.8 V6 SFI “B” LG2
(“E” body) 1227057

3.8 V6 SFI “B” LG2
(exc. “E” body) 1227148

3.8 V6 SFI “3” LG3
(“E” body) 1227057

3.8 V6 SFI “3” LG3
(exc. “E” body) 1227148 1227783
1227886 1227783
1227886

3.8 V6 PFI turbo “9” LM9 1226459 1226459

3.8 V6 SFI turbo “7” LC2 1227148 1227148 1227148

4.1 V8 “8” LT8 1226930 1226930
1226462 1226930
1226462 1227056 1227056

1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993

4.3 V6 TBI “Z” LB4 1226868 1227137 1227746 1227746
1228063 1228063 1228063 16136965 16136965

5.0 V8 CFI “7” LU5 1225550

5.0 V8 CFI “S” LU5 1226026

5.0 V8 TPI “F” LB9 1226870

5.0 V8 TBI “E” L03 1228063 1228746 1228746 1228746
16136965 1228746
16136965 16136965

5.7 V8 CFI “8” L83 1225550 1226026
1226430 1226026
1226430

5.7 V8 TPI “8” L98 1226870

5.7 V8 TBI “7” L05 1228746 1228746 16136965 16135320
16136965 16135320
16136965

	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993
1.8 OHC L4 TBI “O” LH8	1225610	1226100	1226156	1226864	1226864
1.8 OHC L4 PFI turbo “J” LA5		1226460	1226460	1227151
2.0 L4 TBI “P” LQ5		1226026	1226026 1226458	1226867	1226867
2.5 L4 TBI “R” LR8	1225570 1225610	1226100 1226156	1226156	1226864	1226864
2.5 L4 TBI “2” LQ9	1225570 1225610	1226100	1226156	1226864	1226864
2.5 L4 TBI “U” L68		1226864	1226864
2.8 V6 PFI “S” LB8		1226870	1226870 1227302	1227302	1227302	1227302
2.8 V6 PFI “W” LB6		1226870	1226870 1227302
2.8 V6 PFI “9” L44		1226869	1227170	1227170	1227170
	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993
3.0 V6 PFI “L” LN7		1226461 1226948	1227153	1227784	1227784
3.8 V6 PFI “3” LN3		1226461	1226461 1226948 1227065
3.8 V6 SFI “B” LG2 (“E” body)		1227057
3.8 V6 SFI “B” LG2 (exc. “E” body)		1227148
3.8 V6 SFI “3” LG3 (“E” body)		1227057
3.8 V6 SFI “3” LG3 (exc. “E” body)		1227148	1227783 1227886	1227783 1227886
3.8 V6 PFI turbo “9” LM9		1226459	1226459
3.8 V6 SFI turbo “7” LC2		1227148	1227148		1227148
4.1 V8 “8” LT8		1226930	1226930 1226462	1226930 1226462	1227056	1227056
	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993
4.3 V6 TBI “Z” LB4		1226868	1227137	1227746	1227746 1228063	1228063	1228063		16136965	16136965
5.0 V8 CFI “7” LU5	1225550
5.0 V8 CFI “S” LU5		1226026
5.0 V8 TPI “F” LB9		1226870
5.0 V8 TBI “E” L03		1228063	1228746	1228746	1228746 16136965	1228746 16136965	16136965
5.7 V8 CFI “8” L83	1225550	1226026 1226430	1226026 1226430
5.7 V8 TPI “8” L98		1226870
5.7 V8 TBI “7” L05		1228746	1228746	16136965	16135320 16136965	16135320 16136965

Truck ECM selection by model year and engine type:

1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

2.5 L4 TBI “E” LN8 1226864 1226864

2.8 V6 TBI “R” LL2 1227429 1227429 1227429
1228062 1228062 1228062 1228062 1228062 1228062

2.8 V6 TBI “R” LL2 (Isuzu) 1228062 1228062 1228062

3.1 V6 TBI “D” LG6 1228838 16149405 16149405 16149405 16196391 16196391

3.1 V6 TBI “Z” LG6 (Isuzu) 1228838 1228838 1228838 1228838

4.3 V6 TBI “Z” LB4
(“S” & “T” body) 1228062 1228062 1227747
1228062 1227747
1228062
16144288 16144288 16152630

4.3 V6 TBI “Z” LB4
(exc. “S” & “T” body) 1226868 1227137 1227747 1227747 1227747 1227747
1228934
16143900
16144288 1227747
1228934
16143900
16144288 1228934
16143900
16144288 1228934
16144288 16196346

4.3 V6 TBI “B” LU2 1227747 1227747

5.0 V8 TBI “H” L03 1227747 1227747 1227747 1227747 1227747 16146299 16156480
16171199 16196396 16196396

1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

5.7 V8 TBI “K” L05 1227747 1227747 1227747
1228747 1227747
1228747 1227747
1228747 1227747
1228747
16146299 16146299
16156480
16171199 16171199
16196396 16171199
16196396

7.4 V8 TBI “N” L19 1227747 1227747 1227747 1228747 1228747

	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995
2.5 L4 TBI “E” LN8	1226864	1226864
2.8 V6 TBI “R” LL2		1227429	1227429	1227429 1228062	1228062	1228062	1228062	1228062	1228062
2.8 V6 TBI “R” LL2 (Isuzu)		1228062	1228062	1228062
3.1 V6 TBI “D” LG6		1228838	16149405	16149405	16149405	16196391	16196391
3.1 V6 TBI “Z” LG6 (Isuzu)		1228838	1228838	1228838	1228838
4.3 V6 TBI “Z” LB4 (“S” & “T” body)		1228062	1228062	1227747 1228062	1227747 1228062 16144288	16144288	16152630
4.3 V6 TBI “Z” LB4 (exc. “S” & “T” body)	1226868	1227137	1227747	1227747	1227747	1227747 1228934 16143900 16144288	1227747 1228934 16143900 16144288	1228934 16143900 16144288	1228934 16144288	16196346
4.3 V6 TBI “B” LU2		1227747	1227747
5.0 V8 TBI “H” L03		1227747	1227747	1227747	1227747	1227747	16146299	16156480 16171199	16196396	16196396
	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995
5.7 V8 TBI “K” L05		1227747	1227747	1227747 1228747	1227747 1228747	1227747 1228747	1227747 1228747 16146299	16146299 16156480 16171199	16171199 16196396	16171199 16196396
7.4 V8 TBI “N” L19		1227747	1227747	1227747	1228747	1228747

1225550

Description:	Same ROM as 1225570
Application:	1982 5.0 V8 CFI “7” LU5 1982 5.7 V8 CFI “8” L83
MEMPAK IDs:	“7”: TO, ALX, ASY “8”: TS, ARY, ARZ, BMU, BPB
Program ID:	3 ($03)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1225570

Description:	Same ROM as 1225550
Application:	1982 2.5 L4 TBI “R” LR8 1982 2.5 L4 TBI “2” LQ9
MEMPAK IDs:	“R”: UN, US, AOL, AOM, AOS “2”: UW, UX, AON, AOT
Program ID:	3 ($03)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1225610

Application:	1982 1.8 OHC L4 TBI “O” LH8 1982 2.5 L4 TBI “R” LR8 1982 2.5 L4 TBI “2” LQ9
MEMPAK IDs:	“O”: XA, XM “R”: UY, WS, WT, WW, BNC, BNF, BNH, BNK “2”: WX, WY, WZ, BND, BNJ, BNL
Program ID:	10 ($0A)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226026

Application:	1983-84 2.0 L4 TBI “P” LQ5 1983 5.0 V8 CFI “S” LU5 1983-84 5.7 V8 CFI “8” L83 w/ AT (exc. Canada)
MEMPAK IDs:	“P”: AMR, CDS, CDY, … “S”: ALL, ALM, CHH “8”: CCC, CDR
Program ID:	15 ($0F)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226100

Application:	1983 1.8 OHC L4 TBI “O” LH8 1983 2.5 L4 TBI “R” LR8 1983 2.5 L4 TBI “2” LQ9
MEMPAK IDs:	“O”: AXW, AXX, AXZ “R”: AXN, AXP, AXS, CDL, … “2”: AXO, AXT, AXU, CCZ, …
Program ID:	10 ($0A)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226156

More info
Schematic

Application:	1984 1.8 OHC L4 TBI “O” LH8 1983-84 2.5 L4 TBI “R” LR8 1984 2.5 L4 TBI “2” LQ9
MEMPAK IDs:	“O”: CMU, CWM, CWN, DCT, DFJ, DFK “R”: CKV, CLM, CWF, DDC, DDB, DJC, DKY, AMPK, AMPL, AMPM, … “2”: CLL, …
Program ID:	20 ($14)
Pgm ID Addr:	$E004
Scan ID Addr:	$E2E2:$E2E3
EPROM type:	TMS2532
EPROM offset:	$E000

1226430

Application:	1983-84 5.7 V8 CFI “8” L83 w/ MT 1983-84 5.7 V8 CFI “8” L83 w/ AT (Canada)
MEMPAK IDs:	CDF, CDK, CFB, DBP, DBR
Program ID:	22 ($16)
Pgm ID Addr:	$3002
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226458

Application:	1984 2.0 L4 TBI “P” LQ5
MEMPAK IDs:	BHP, BHZ, DHA, …
CALPAK IDs:	16037134
Program ID:	26 ($1A)
Pgm ID Addr:	$33FB
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226459

Description:	Same ROM as 1226461
Application:	1984-85 3.8 V6 SFI turbo “9” LM9
MEMPAK IDs:	BNT, CMM, CMP, DNN, DNP, DJW, DJX, DXP
CALPAK IDs:	16036504
Program ID:	29 ($1D)
Pgm ID Addr:	$37FE
Scan ID Addr:	$37FB:$37FC
EPROM type:	2732
EPROM offset:	$3000

1226460

Application:	1984-85 1.8 OHC L4 PFI turbo “J” LA5
MEMPAK IDs:	DJH, HWZ, …
CALPAK IDs:	16036910
Program ID:	21 ($15)
Pgm ID Addr:	$33FB
Scan ID Addr:	$33F8:$33F9
PROM type:	N82S181
PROM offset:	$3000

1226461

Description:	Same ROM as 1226459
Application:	1985 3.0 V6 PFI “L” LN7 1984-85 3.8 V6 PFI “3” LN3
MEMPAK IDs:	“L”: CMK, DXL “3”: CMH, DWM, FBY, …
CALPAK IDs:	“L”: … “3”: 16036495
Program ID:	29 ($1D)
Pgm ID Addr:	$37FE
Scan ID Addr:	$37FB:$37FC
EPROM type:	2732
EPROM offset:	$3000

1226864

More info
Schematic

Application:	1985-86 1.8 OHC L4 TBI “O” LH8 1985-86 2.5 L4 TBI “R” LR8 1985-86 2.5 L4 TBI “U” L68 1985-86 2.5 L4 TBI “2” LQ9 1985-86 truck 2.5 L4 TBI “E” LN8
MEMPAK IDs:	“O”: CZP, FAM, FAN, FCB, FDM, FWK “R”: DYM, DZA, FAT, FAU, HFL, HHW, HHZ, AAMJ, ALRS, … “U”: DYU, FAR, HFL, HHY, … “2”: DYY, DYZ, FAJ, FJU, HHX “E”: CFX, DHD, …
Program ID:	28 ($1C)
Pgm ID Addr:	$E004
Scan ID Addr:	$E314:$E315
EPROM type:	TMS2532
EPROM offset:	$E000

1226867

Application:	1985 2.0 L4 TBI “P” LQ5 1986 2.0 L4 TBI “P” LQ5 w/ AT
MEMPAK IDs:	CRJ, DJU, HDU, HDW, HHC, HTD, HTL, HTM, …
CALPAK IDs:	16041334
Program ID:	32 ($20)
Pgm ID Addr:	$D002
Scan ID Addr:	$D3C2:$D3C3
EPROM type:	2732
EPROM offset:	$D000

1226868

Application:	1985 4.3 V6 TBI “Z” LB4 1985 truck 4.3 V6 TBI “Z” LB4 (“G” body)
MEMPAK IDs:	CRS, …
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

1226869

More info
Schematic

Application:	1985 2.8 V6 MPFI “9” L44
MEMPAK IDs:	FTX, FTY
CALPAK IDs:	16044802
Program ID:	36 ($24)
Pgm ID Addr:	$356D
Scan ID Addr:	$356A:$356B
EPROM type:	2732
EPROM offset:	$3000

1226870

More info
Schematic

Application:	1985-86 2.8 V6 MPFI “S” LB8 1985-86 2.8 V6 MPFI “W” LB6 1985 5.0 V8 TPI “F” LB9 1985 5.7 V8 TPI “8” L98
MEMPAK IDs:	“S”: CSR, … “W”: CSJ, DTD, FRS, … “F”: FTM, HLL, … “8”: …
CALPAK IDs:	“S”: 16046461 “W”: 16046461 “F”: 16042431 “8”: …
Program ID:	31 ($1F)
Pgm ID Addr:	$3005
Scan ID Addr:	$3002:$3003
EPROM type:	2732
EPROM offset:	$3000

1226948

Application:	1985 3.0 V6 PFI “L” LN7 1985 3.8 V6 PFI “3” LN3 (leaded fuel export)
MEMPAK IDs:	“L”: DXT, FWJ, ATNC “3”: HKL
CALPAK IDs:	“L”: 16047429 “3”: …
Program ID:	29 ($1D)
Pgm ID Addr:	$37FE
Scan ID Addr:	$37FB:$37FC
EPROM type:	2732
EPROM offset:	$3000

1227056

Application:	1986-87 4.1 V8 “8” LT8
MEMPAK IDs:	AFTS, …
CALPAK IDs:	16050287
Scan ID Addr:	$C9FB:$C9FC
EPROM type:	27128
EPROM offset:	$C000

1227057

Application:	1986 3.8 V6 SFI “B” LG2 (“E” body) 1987 3.8 V6 SFI “3” LG3 (“E” body)
MEMPAK IDs:	“B”: CMX, ABYX, … “3”: …
CALPAK IDs:	“B”: 16036495 “3”: …
Program ID:	51 ($33)
Pgm ID Addr:	$3005
Scan ID Addr:	$3002:$3003
EPROM type:	2732
EPROM offset:	$3000

1227065

Application:	1985 3.8 V6 PFI “3” LN3 (“C” body)
MEMPAK IDs:	CMB, ATND
CALPAK IDs:	16036495
Program ID:	42 ($2A)
Pgm ID Addr:	$37FE
Scan ID Addr:	$37FB:$37FC
EPROM type:	2732
EPROM offset:	$3000

1227137

Application:	1986 4.3 V6 TBI “Z” LB4 1986 truck 4.3 V6 TBI “Z” LB4
MEMPAK IDs:	FJD, ACHJ, …
CALPAK IDs:	…
Program ID:	39 ($27)
Pgm ID Addr:	$D002
Scan ID Addr:	$D4F6:$D4F7
EPROM type:	2732
EPROM offset:	$D000

1227148

Description:	Same ROM as 1227153
Application:	1986 3.8 V6 SFI “B” LG2 (exc. “E” body) 1986 3.8 V6 SFI “3” LG3 1986-87 & 1989 3.8 V6 SFI turbo “7” LC2
MEMPAK IDs:	“B”: … “3”: ATJ, CLD, HXB, ABYR, ABYS, ABYU, AWWZ, … “7”: TK, ATH, CMW, DRL, ACXA, APXB, BBKJ
CALPAK IDs:	“B”: … “3”: 16036495 “7”: 16036504
Program ID:	49 ($31)
Pgm ID Addr:	$37A2
Scan ID Addr:	$379F:$37A0
EPROM type:	2732
EPROM offset:	$3000

1227151

Application:	1986 1.8 OHC L4 PFI turbo “J” LA5
MEMPAK IDs:	AWJ, CDP, FBC, FBF, HWR
CALPAK IDs:	16050718
Program ID:	46 ($2E)
Pgm ID Addr:	$D5BB
Scan ID Addr:	$D5B8:$D5B9
EPROM type:	2732
EPROM offset:	$D000

1227153

Description:	Same ROM as 1227148
Application:	1986 3.0 V6 PFI “L” LN7
MEMPAK IDs:	CWS, HUD, AMNW, …
CALPAK IDs:	16047429
Program ID:	49 ($31)
Pgm ID Addr:	$37A2
Scan ID Addr:	$379F:$37A0
EPROM type:	2732
EPROM offset:	$3000

1227170

More info
Schematic

Application:	1986-88 2.8 V6 MPFI “9” L44
MEMPAK IDs:	APN, APP, APR, APS, FBA, FBB, HWT, HWU, HWW, HWX, AATC, AKYM, AKYN, AKYP, AKYR
CALPAK IDs:	16044802
Program ID:	36 ($24)
Pgm ID Addr:	$3587
Scan ID Addr:	$3584:$3585
EPROM type:	2732
EPROM offset:	$3000

1227302

More info
Schematic

Application:	1986-89 2.8 V6 MPFI “S” LB8 1986 2.8 V6 MPFI “W” LB6
MEMPAK IDs:	“S”: HNJ, HNK, APFS, … “W”: HKX, HKY, HNC, HNZ, HPL, HRB, ANPU, …
CALPAK IDs:	16046461
Program ID:	58 ($3A)
Pgm ID Addr:	$3005
Scan ID Addr:	$3002:$3003
EPROM type:	2732
EPROM offset:	$3000

1227429

Application:	1986-88 truck 2.8 V6 TBI “R” LL2
MEMPAK IDs:	ARY, ASL, ASP, …
CALPAK IDs:	16051460
Program ID:	63 ($3F)
Pgm ID Addr:	$D002
Scan ID Addr:	$D4C1:$D4C2
EPROM type:	2732
EPROM offset:	$D000

1227746

Application:	1987-88 4.3 V6 TBI “Z” LB4 1987 truck 4.3 V6 TBI “Z” LB4 (“G” body)
MEMPAK IDs:	FWL, …
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

1227747

Schematic

Application:	1987-91 truck 4.3 V6 TBI “Z” LB4 (exc. “S” & “T” body) 1990 truck 4.3 V6 TBI “Z” LB4 w/ MT (“S” & “T” body) 1990-91 truck 4.3 V6 TBI “B” LU2 1987-91 truck 5.0 V8 TBI “H” L03 1987-90 truck 5.7 V8 TBI “K” L05 1991-92 truck 5.7 V8 TBI “K” L05 w/o 4L80E 1987-89 truck 7.4 V8 TBI “N” L19
MEMPAK IDs:	“Z”: ADWD, AKDX, AKSN, APAB, ATKX, … “B”: … “H”: ADTJ, AFDY, AJUK, ARPC, … “K”: ACSU, ACSW, AKAL, AKAJ, AKAR, AMUR, ANLW, ANLX, ANLZ, ARHT, ARJT, ARJU, ASDU, ASDW, ASDZ, … “N”: ANTZ, AZFT, …
CALPAK IDs:	“Z”: 16051637 …
Program ID:	66 ($42)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

1227783

Application:	1987-88 3.8 V6 SFI “3” LG3 (exc. “E” body) (domestic)
MEMPAK IDs:	AFDL, AJSJ, AKAY, AKBA, …
CALPAK IDs:	16036495
Program ID:	68 ($44)
Pgm ID Addr:	$3004
Scan ID Addr:	$3002:$3003
EPROM type:	2732
EPROM offset:	$3000

1227784

Application:	1987-88 3.0 V6 PFI “L” LN7
MEMPAK IDs:	ACZJ, AFRB, AKBC, AKBD, …
CALPAK IDs:	16047429
Program ID:	76 ($4C)
Pgm ID Addr:	$3004
Scan ID Addr:	$3002:$3003
EPROM type:	2732
EPROM offset:	$3000

1227886

Application:	1987-88 3.8 V6 SFI “3” LG3 (exc. “E” body) (Canada or leaded fuel export)
MEMPAK IDs:	AALT, …
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$3000

1228062

Application:	1988-93 truck 2.8 V6 TBI “R” LL2 1988-91 truck 4.3 V6 TBI “Z” LB4 w/ AT (“S” & “T” body) 1989 truck 2.8 V6 TBI “R” LL2 (Isuzu) 1990-91 truck 2.8 V6 TBI “R” LL2 (Isuzu)
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	78 ($4E)
Pgm ID Addr:	$D004
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

1228063

Application:	1988-90 4.3 V6 TBI “Z” LB4 1988 5.0 V8 TBI “E” L03
MEMPAK IDs:	“Z”: … “E”: AMYB, …
CALPAK IDs:	…
Program ID:	77 ($4D)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

1228746

Schematic

Application:	1989-90 5.0 V8 TBI “E” L03 1991-92 5.0 V8 TBI “E” L03 (“F” body) 1989-90 5.7 V8 TBI “7” L05
MEMPAK IDs:	“E”: APFN, AXKS, … “7”: ANLU, AUML, …
CALPAK IDs:	16060837
Program ID:	97 ($61)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

1228747

Application:	1989-90 truck 5.7 V8 TBI “K” L05 1991-92 truck 5.7 V8 TBI “K” L05 w/o 4L80E 1990 truck 7.4 V8 TBI “N” L19 1991 truck 7.4 V8 TBI “N” L19 w/ MT
MEMPAK IDs:	“K”: … “N”: AUMU, …
CALPAK IDs:	…
Program ID:	79 ($4F)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

1228838

Application:	1990 truck 3.1 V6 TBI “D” LG6 1991-93 truck 3.1 V6 TBI “Z” LG6 (Isuzu) 1994 truck 3.1 V6 TBI “Z” LG6 (Isuzu)
MEMPAK IDs:	ATYN, …
CALPAK IDs:	16124458
Program ID:	106 ($6A)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

16135320

Application:	1992-93 5.7 V8 TBI “7” L05
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

16136965

Application:	1992-93 4.3 V6 TBI “Z” LB4 1991-93 5.0 V8 TBI “E” L03 (exc. “F” body) 1991-93 5.7 V8 TBI “7” L05
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	98 ($62)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

16143900

Application:	1990-92 truck 4.3 V6 TBI “Z” LB4 w/MT (exc. “S” & “T” body)
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16144288

Application:	1990-92 truck 4.3 V6 TBI “Z” LB4 (exc. “S” & “T” body) 1993 truck 4.3 V6 TBI “Z” LB4 w/ MT (“C” & “K” & “P” body) 1991 truck 4.3 V6 TBI “Z” LB4 w/ MT (“S” & “T” body) 1992 truck 4.3 V6 TBI “Z” LB4 (“S” & “T” body)
MEMPAK IDs:	AWHH, …
CALPAK IDs:	…
Program ID:	160 ($A0)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

16146299

Application:	1992 truck 4.3 V6 TBI “Z” LB4 1992 truck 5.0 V8 TBI “H” L03 1992-93 truck 5.7 V8 TBI “K” L05 w/o 4L80E
MEMPAK IDs:	“Z”: … “H”: AWHD, … “K”: AWLC, …
CALPAK IDs:	…
Program ID:	153 ($99)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000

16149405

Application:	1991-93 truck 3.1 V6 TBI “D” LG6
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16152630

Application:	1993 truck 4.3 V6 TBI “Z” LB4 w/MT (“S” & “T” body)
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16156480

Application:	1993 truck 5.0 V8 TBI “H” L03 w/ MT 1993 truck 5.7 V8 TBI “K” L05 w/ MT
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	154 ($9A)
Pgm ID Addr:	$D004
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16171199

Application:	1993 truck 5.0 V8 TBI “H” L03 w/ MT 1993-95 truck 5.7 V8 TBI “K” L05 w/ MT
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16196346

Application:	1994 truck 4.3 V6 TBI “Z” w/ MT (“P” body)
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16196391

Application:	1994-95 truck 3.1 V6 TBI “D” LG6
MEMPAK IDs:	…
CALPAK IDs:	…
Program ID:	?? ($??)
Pgm ID Addr:	$????
Scan ID Addr:	$????:$????
EPROM type:	2732
EPROM offset:	$D000

16196396

Application:	1994-95 truck 5.0 V8 TBI “H” L03 w/ MT 1994-95 truck 5.7 V8 TBI “K” L05 w/ MT
MEMPAK IDs:	“H”: BDUJ “K”: BDUY, BDUZ, BDTR
CALPAK IDs:	…
Program ID:	154 ($9A)
Pgm ID Addr:	$D004
Scan ID Addr:	$D002:$D003
EPROM type:	2732
EPROM offset:	$D000