GM Service Manual Online
For 1990-2009 cars only
Table 1: ECM
Table 2: RCDLR

ECM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF.

VTD Password Learn Enabled

Data

Yes/No

No

Vehicle Security Status

Data

Fuel Continue/Fuel Lockout/Fuel Disabled/Learn Timer Active/Fail Enable/Learn Enable

Fuel Continue

VTD Fuel Disable

Data

Active/Inactive

Inactive

VTD Auto. Learn Timer

Data

Active/Inactive

Inactive

VTD Fuel Disable Until Ign. Off

Data

Yes/No

No

RCDLR

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, Engine OFF.

Battery Reconnect

Substitution Detection

Yes/No

No

DDM Substitution

Substitution Detection

Unknown/Yes/No

No

DPM Substitution

Substitution Detection

Unknown/Yes/No

No

IPC Substitution

Substitution Detection

Unknown/Yes/No

No

LRDM Substitution

Substitution Detection

Unknown/Yes/No

No

PDM Substitution

Substitution Detection

Unknown/Yes/No

No

RIM Substitution

Substitution Detection

Unknown/Yes/No

No

RRDM Substitution

Substitution Detection

Unknown/Yes/No

No

Substitution Detection Status

Substitution Detection

Pass/Fail

Pass

Temper Flag

Substitution Detection

On/Off

Off

Valid RCDLR VIN

Substitution Detection

Yes/No

No