GM Service Manual Online
For 1990-2009 cars only
Table 1: DDM
Table 2: PDM
Table 3: RCDLR Data 1
Table 4: RCDLR Data 2

DDM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Ext. LF Door Handle Switch

DDM

Active/Inactive

Inactive

Int. LF Door Handle Switch

DDM

Active/Inactive

Inactive

PDM

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Ext. RF Door Handle Switch

PDM

Active/Inactive

Inactive

Int. RF Door Handle Switch

PDM

Active/Inactive

Inactive

RCDLR Data 1

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Battery Voltage Signal

RCDLR Data 1

Volts

12.6

Ignition Mode Switch

RCDLR Data 1

Idle/Crank/Accy/Off

Off

Ignition Mode Switch

RCDLR Data 1

Volts

12.6

Last Key Fob Used

RCDLR Data 1

Fob #

Fob 1

No. of Fob's Programmed

RCDLR Data

0,1,2,3,4

2

Exterior Rear Compartment Request

RCDLR Data 1

Active/Inactive

Inactive

RCDLR Data 2

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Key Fob 1 Battery Voltage Signal

RCDLR Data 2

Volts

2.0

Key Fob 1 Low Voltage

RCDLR Data 2

Ok/Low

Ok

Key Fob 2 Battery Voltage Signal

RCDLR Data 2

Volts

2.0

Key Fob 2 Low Voltage

RCDLR Data 2

Ok/Low

Ok

Key Fob 3 Battery Voltage Signal

RCDLR Data 2

Volts

2.0

Key Fob 3 Low Voltage

RCDLR Data 2

Ok/Low

Ok

Key Fob 4 Battery Voltage Signal

RCDLR Data 2

Volts

2.0

Key Fob 4 Low Voltage

RCDLR Data 2

Ok/Low

Ok