General Motors Powertrain Control Modules
From PartsWiki
Black Box PCMs
"Gen 3" PCMs
The Powertrain Control Modules released to control Chevy's 3rd Generation Small Block V8 Engines, as well as other engines of roughly the same era (1996-2008).
There is no good nickname for these PCMs like with the Black Box series, but a lot of people seem to call them Gen 3 PCMs.
Identification
Gen III PCMs (like others) have a pair of identification numbers by which they can be differentiated.
Service Number
This is the top number on the label, abbreviated SERV. NO. on the printed label.
Hardware Number
This is the bottom number on the label, abbreviated HDW. NO. on the printed label.
P01 Family
Blue and Red Connectors
| Service # | 16238212 | 9354896 | 12200411 |
|---|---|---|---|
| Hardware # | 16239740 | 9380120/
16220610 |
9386530 |
| Drive by Cable | Yes | Yes | Yes |
| Vehicles |
P59 Family
"Gen 4" PCMs
Paste dump lol will organize later
GM PCM/ECM Master List
OBD1 / Early OBD2 Era (Pre-1997)
| Designation | Era | Engines / Applications | Notes |
|---|---|---|---|
| "Black Box" | 1992–1997 | LT1, LT4, L99 — F-body, B-body, Corvette | Mem-cal removable chip, single large connector, OBD1/early OBD2 |
Gen 3 PCM Era (Dual long connectors)
| Designation | Era | Engines / Applications | Notes |
|---|---|---|---|
| P01 | 1997–2003 | Gen III LS V8 (LS1, LS6) — Camaro, Firebird, Corvette, Silverado/Sierra, Express Van, Tahoe, Yukon, Suburban; also 4.3L Vortec V6 trucks | Red + Blue connectors. Controls engine AND trans (PCM). "0411" refers specifically to the 2001–03 revision with upgraded processor |
| P04 | 1996–2005 | 3100 (LG8/LA1), 3400, 3800 Series II (L36/L67) — FWD cars and vans; also 3800 F-body Camaro/Firebird | Shared across all FWD V6 applications. Blue connectors, different form than P01 |
| P05 | 2004–2006 | 3800 Series III (L26/L32), 3500 LX9 V6 | Successor to P04, 2x RAM/ROM, added ETC support |
| P06 | 2000–2003 | Northstar V8 (Siemens era) | The problem child — Siemens-built, not Delco, very limited tuning support |
| P07 | ~2004–2005 | Northstar V8 FWD (E22-type) | Believed to be E22-class hardware |
| P08 | ~1999–2005 | 2.2L / 2.4L I4 — Cavalier, Sunfire, Grand Am, Alero | FWD 4-cylinder applications |
| P10 | 2002–2005 | 4.2L LL8 inline-6 — Trailblazer, Envoy, Bravada, Rainier, 9-7X | VPW only, no CAN, no MAF support |
| P11 | ~2004–2006 | High-feature V6 (2.8L/3.6L LY7) — CTS, Malibu, G6, others | CAN-based |
| P12 | 2006–2007 | 4.2L LL8 inline-6 — Trailblazer, Envoy (later years); also LLY Duramax shares same case | Successor to P10, added CAN + MAF capability |
| P59 | 2003–2007 | Gen III LS V8 — Silverado/Sierra/Tahoe/Yukon/Suburban trucks; 2003–2005 Corvette; 2004 GTO; 2004–2005 CTS-V | Blue + Green connectors. DBW-capable (some variants IAC-equipped for cable throttle too). Flex fuel capable |
Gen 4 ECM Era (separate TCM)
| Designation | Era | Engines / Applications | Notes |
|---|---|---|---|
| E40 | 2005–2006 | Gen III/IV transition — LS2 in Corvette (05 only), GTO, SSR, TrailBlazer SS (06), Impala SS, Monte Carlo SS, Grand Prix GXP, LS4 FWD V8 | 24x crank reluctor, 3 connectors, transitional unit |
| E37 | 2007–2011 | 4.3L V6 trucks/SUVs — Silverado, Sierra, Tahoe etc. | Also used in some I4 applications |
| E38 | 2006–2016 | Gen IV LS V8 NA — LS2 (late), LS3, L76, L98, L77, L9H (6.0L truck), 6.2L L92 — Corvette, Camaro, trucks/SUVs, G8, Pontiac | Dominant Gen 4 ECM. 58x crank. Requires DBW |
| E67 | 2006–2015 | Gen IV forced induction + Northstar — LSA (CTS-V, ZL1 Camaro), LS9 (ZR1), Northstar 2006+ (DTS, STS, XLR), TrailBlazer SS (07+), LS4 FWD (07+) | 3 connectors on some variants. Supercharger control tabs in software |
| E78 | 2011–2014 | 6.0L L96 V8 — HD 2500/3500 Silverado/Sierra gas engine | Torque-based management (bridging Gen 4/5 behavior) |
| E22 | ~2004–2006 | 2.0L Ecotec turbocharged I4 — Cobalt SS, Ion Redline (early); also some Northstar applications | Transitional CAN unit |
| E39 / E39A | ~2008–2012 | 2.0L/2.4L Ecotec I4 — Cobalt, HHR, Malibu, G5, Vue, Solstice/Sky (later) |
Gen 5 ECM Era (Direct Injection LT engines)
| Designation | Era | Engines / Applications | Notes |
|---|---|---|---|
| E92 / E92A | 2014–present | LT1, LT4, L83, L86, L87 — C7/C8 Corvette, 5th/6th gen Camaro, Silverado/Sierra gen 5 trucks | Torque-based architecture. E92A = 2017+ |
Diesel
| Designation | Era | Engines / Applications | Notes |
|---|---|---|---|
| E54 | ~2001–2004 | 6.6L LB7 Duramax | Early Duramax ECM, shares connector family with P01 |
| E60 | ~2004–2006 | 6.6L LLY Duramax | |
| E98 | ~2011+ | 6.6L LML/L5P Duramax | Later Generation |
