GM Service Manual Online
For 1990-2009 cars only
Table 1: Dash Integration Module (DIM)
Table 2: Engine Control Module (ECM) - 3.6L
Table 3: Engine Control Module (ECM) -- 4.6L
Table 4: Instrument Panel Cluster (IPC)

The scan tool data lists contain all the instrument panel, gages, and console related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The data list column indicates the location of the parameter within the scan tool menu selections.

Use the scan tool data lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with Diagnostic System Check - Vehicle in Vehicle DTC Information.

Use the scan tool data lists only after the following is determined:

    • There is no published DTC procedure nor published symptom procedure for the customer concern.
    • The DTC or symptom procedure indicated by the diagnostic system check does not resolve the customer concern.

The typical data values are obtained from a properly operating vehicle under the conditions specified in the first row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.

Dash Integration Module (DIM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF

Key in Ignition

Inputs

Yes/No

Yes

Engine Control Module (ECM) - 3.6L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

Cruise Control Active

IPC Data

Yes/No

No

Current Gear

IPC Data

PRNDL

Varies

ECT Sensor

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Life Remaining

IPC Data

%

Varies

Engine Oil Level Switch

IPC Data

OK/Low

OK

Engine Oil Pressure Sensor

IPC Data

OK/Low

OK

Engine Oil Pressure Sensor

IPC Data

kPa (psi)

Varies w/oil pressure

Engine Oil Pressure Sensor

IPC Data

Volts

Varies w/oil pressure

Engine Speed

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

RPM

±100 RPM from Desired Idle Speed

Fuel Level Sensor Left

EVAP Data

IPC Data

Volts

Varies w/fuel level

Fuel Level Sensor Right

EVAP Data

IPC Data

Volts

Varies w/fuel level

Fuel Tank Level Remaining

Engine Data 1

EVAP Data

IPC Data

Liters/Gallons

Varies w/fuel level

Fuel Tank Level Remaining

EVAP Data

IPC Data

%

Varies w/fuel level

Ignition 0 Signal

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

Yes/No

Yes

Ignition 1 Signal

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

Yes/No

Yes

MIL Circuit Status

IPC Data

OK/Low

OK

MIL Command

Engine Data 1

IPC Data

Yes/No

No

Reduced Engine Power

Engine Data 1

Engine Data 2

IPC Data

Yes/No

No

Vehicle Security Status

Engine Data 2

IPC Data

On/Off

Off

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

kilometers per hour (miles per hour)

0 km/h (0 mph)

Engine Control Module (ECM) -- 4.6L

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Engine Idling/Normal Operating Temperature

Commanded Gear

IPC Data

Shift, 1st, 2nd, 3rd, 4th, 5th, Invalid, Invalid, Reverse, Neutral, Park

Park

Cruise Control Active

IPC Data

Yes / No

No

ECT Sensor

IPC Data

Celsius (Fahrenheit)

85-105°C (185-220°F)

Engine Oil Pressure Sensor

IPC Data

Volts

0 - 5 V (Varies w/oil pressure)

Engine Oil Pressure Sensor

IPC Data

kPa (psi)

Varies w/oil pressure

Engine Oil Temperature Sensor

IPC Data

Celsius (Fahrenheit)

Varies w/oil temperature

Engine Speed

IPC Data

RPM

±100 RPM from Desired Idle Speed

Fuel Level Sensor Left Tank

IPC Data

Volts

Varies w/fuel level

Fuel Level Sensor Right Tank

IPC Data

Volts

Varies w/fuel level

Fuel Tank Level Remaining

IPC Data

Liters / Gallons

Varies w/fuel level

GEN L - Terminal Signal Command

IPC Data

Off / On

On

Ignition 0 Signal

IPC Data

Off / On

On

Ignition 1 Signal

IPC Data

Volts

9 - 12 V (varies)

MIL Circuit Status

IPC Data

Fault / Indeterminate / Ok

OK

MIL Command

Engine Data 1

IPC Data

Off / On

Off

Vehicle Speed Sensor

Engine Data 1

Engine Data 2

EVAP Data

IPC Data

kilometers per hour (miles per hour)

0 km/h (0 mph)

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Park Brake Unapplied

8 Digit GM Part Number

ID Information

Numeric

Varies

ABS Input

Inputs

On/Off

Off

Battery Volts

Data

Volts

9-16 V

Brake Fluid Switch

Data

Volts

Varies w/fluid level

Calibration ID

ID Information

Numeric

Varies

Engine Speed

Data

RPM

0 RPM

Ignition 1

Inputs

On/Off

On

Ignition Counter

Data

Cycles

Varies

Julian Date of Build

ID Information

Numeric

Varies

Left Turn Signal

Inputs

On/Off

Off

Park Brake Switch

Inputs

On/Off

Off

PROM ID

ID Information

Numeric

Varies

Right Turn Signal

Inputs

On/Off

Off

Vehicle Speed

Data

kilometers per hour (miles per hour)

0 km/h (0 mph)

Year Model Built

ID Information

Numeric

Varies