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GM PCM Commands

Code: Select all
1998 Pontiac Sunfire LN2 2.2l
On/off/Return

coolant fan
AE 01 10 10 00 00 00 00
AE 01 10 00 00 00 00 00
AE 01 00 00 00 00 00 00

MIL
AE 01 80 80 00 00 00 00
AE 01 80 00 00 00 00 00
AE 01 00 00 00 00 00 00

AC relay
AE 01 40 40 00 00 00 00
AE 01 40 00 00 00 00 00
AE 01 00 00 00 00 00 00

Evap Purge
AE 01 00 00 00 00 20 FF
AE 01 00 00 00 00 20 00
AE 01 00 00 00 00 00 00

Evap Vent
AE 01 20 20 00 00 00 00
AE 01 20 00 00 00 00 00
AE 01 00 00 00 00 00 00

Evap Sys performance
AE 01 20 20 00 00 20 FF
AE 01 00 00 00 00 00 00

Evap Seal
AE 01 20 20 00 00 20 00
AE 01 00 00 00 00 00 00

EGR Command from 0 to 100% by 10s then back down to 0% then return control to PCM
AE 01 00 00 00 00 40 1A
AE 01 00 00 00 00 40 33
AE 01 00 00 00 00 40 4D
AE 01 00 00 00 00 40 66
AE 01 00 00 00 00 40 80
AE 01 00 00 00 00 40 99
AE 01 00 00 00 00 40 B3
AE 01 00 00 00 00 40 CC
AE 01 00 00 00 00 40 E6
AE 01 00 00 00 00 40 FF
AE 01 00 00 00 00 40 E6
AE 01 00 00 00 00 40 CC
AE 01 00 00 00 00 40 B3
AE 01 00 00 00 00 40 99
AE 01 00 00 00 00 40 80
AE 01 00 00 00 00 40 66
AE 01 00 00 00 00 40 4D
AE 01 00 00 00 00 40 33
AE 01 00 00 00 00 40 1A
AE 01 00 00 00 00 40 00
AE 01 00 00 00 00 00 00

Cruise enable Disable
AE 01 04 04 00 00 00 00
AE 01 04 00 00 00 00 00
AE 01 00 00 00 00 00 00

Fuel Pump
AE 02 00 00 00 00 80 FF
AE 02 00 00 00 00 80 00
AE 02 00 00 00 00 00 00

Gen L Terminal
AE 01 01 01 00 00 00 00
AE 01 01 00 00 00 00 00
AE 01 00 00 00 00 00 00

CKP Variation ReLern
AE 01 00 00 02 02 00 00
Then hit throttle to WOT until fuel cutoff!!!!

RPM Control increment by 2 for 25Rpm
AE 02 00 06 30 00 00 00 600Rpm
AE 02 00 06 32 00 00 00 625Rpm
AE 02 00 06 34 00 00 00 650Rpm
AE 02 00 06 50 00 00 00 1000Rpm
etc etc
AE 02 00 06 A0 00 00 00 2000Rpm
AE 02 00 00 00 00 00 00

Fuel Trim Reset
3B 63 80 80 80 80 80 80
3B 64 80 80 80 80 80 80
3B 65 80 80 80 80 80 80
3B 66 80 80 80 80 80
3B 67 80 80 80 80 80 80
3B 66 80 80 80 80
3B 6A 80 80
3B 6A 80 80 80

TCC
AE 03 40 C0 00 00 00 00
AE 03 40 80 00 00 00 00

Cylinder Power Balance
AE 02 00 80 00 00 00 00 Returns any Disabled injectors back on
AE 02 01 00 00 00 00 00 Disable Inj #1
AE 02 02 00 00 00 00 00 Disable Inj #2
AE 02 03 00 00 00 00 00 Disable Inj #3
AE 02 04 00 00 00 00 00 Disable Inj #4