Hummer H3. Manual — part 1350

Engine Speed

The scan tool displays 0-9999 RPM. The IPC monitors the engine speed signal circuit from
the PCM.

Engine Speed

The scan tool displays 0-9999 RPM. The PCM computes the engine speed. It should remain
close to desired idle under various engine loads with the engine idling.

Fade

The scan tool displays 0-252 counts. The amount of front to rear fade selected.

Fuel Level

The scan tool displays 0-100%. The IPC calculates the amount of fuel remaining in the tank
based on the input from the PCM.

Fuel Level Sensor

The scan tool displays 0-5 volts. The PCM calculates the amount of fuel remaining in the
tank based on the input from the fuel level sensor.

Fuel Level Sensor

The scan tool displays 0-100%. The PCM calculates the amount of fuel remaining in the
tank based on the input from the fuel level sensor.

Hazard Lamp Switch

The scan tool displays Active or Inactive. The BCM monitors the hazard lamp switch
circuit. When the hazard switch is turned Off the signal is displayed as Inactive.

Headlamp Off Switch

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the
headlamp Off switch. A closed switch is displayed as Active.

Headlamp On Switch

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Displays and Gages - H3

headlamp on switch. A closed switch is displayed as On.

Headlamp Relay

The scan tool displays On or Off. This is the state of the headlamp and the panel dimmer
switch. The scan tool displays On when the headlamp and the panel dimmer switch is turned
On or in auto position with the ambient light sensor in its dark state.

High Beam Indicator Command

The scan tool displays On or Off. This is the state of the high beam indicator as commanded
by the IPC.

High Beam Select Switch

The scan tool displays Active or Inactive. The BCM monitors the high beam select switch
circuit. When the high beam select switch is turned On the signal is displayed as Active.

Ignition 1 Signal

The scan tool displays 0-19 volts. The voltage measured at the ignition 1 voltage circuit of
the PCM.

Ignition Accessory Signal

The scan tool displays On or Off. The BCM monitors the position of the ignition switch. On
is displayed when the ignition switch is in the Run or ACCY position.

Ignition Off/Run/Crank

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the key in
ignition switch. A closed switch is displayed as Active with the key in the ignition.

Ignition 1 Run/Crank

The scan tool displays Active or Inactive. The BCM monitors the position of the ignition
switch. Active is displayed when the ignition switch is in the Run or CRANK position.

LF Turn/Hazard Lamp Command

The scan tool displays On or Off. This is the state of the left front turn lamp as commanded
by the BCM.

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Displays and Gages - H3

LR Turn/Hazard Lamp Command

The scan tool displays On or Off. This is the state of the left rear turn lamp as commanded
by the BCM.

Low EOP Indicator Command

The scan tool displays On or Off. This is the commanded state of the low engine oil pressure
indicator by the PCM.

MIL (Malfunction Indicator Lamp) Command

The scan tool displays On or Off. This is the commanded state of the malfunction indicator
lamp (MIL) by the PCM.

MIL Circuit Status

The scan tool displays OK, Short Gnd/Open, Short to B+ or Incomplete. This is the state of
the MIL signal circuit as monitored by the PCM.

MIL Requested by DTC

The scan tool displays Yes or No. This is the parameter for determining if the MIL lamp is
commanded on due to a set PCM DTC.

Park Brake Switch

The scan tool displays Applied or Released. The BCM monitors the signal circuit of the
park brake switch. A closed switch is displayed as Applied.

Park Lamp Switch

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the
parklamp switch. A closed switch is displayed as Active.

Passenger Door Ajar Switch

The scan tool displays Door Ajar or Door Closed. The BCM monitors the signal circuit of
the passenger door ajar switch. An open switch is displayed as Door Ajar with the door
open.

PRNDL Switch

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Displays and Gages - H3

The scan tool displays Park, Reverse, Neutral, Drive, 1st, 2nd or 3rd. The state of the
PRNDL as commanded by the IPC.

Reduced Engine Power

The scan tool displays Inactive or Active. This is the state of the Reduced Engine Power
indicator as monitored by the PCM.

RF Turn/Hazard Lamp Command

The scan tool displays On or Off. This is the state of the right front turn lamp as commanded
by the BCM.

RR Turn/Hazard Lamp Command

The scan tool displays On or Off. This is the state of the right rear turn lamp as commanded
by the BCM.

Security Indicator Command

The scan tool displays On or Off. This is the state of the security indicator as commanded by
the BCM.

Trip Odometer

The scan tool displays miles. The IPC calculates trip odometer information from the vehicle
speed data received from the PCM.

Trip Reset Switch

The scan tool displays Active or Inactive. The IPC monitors the control stem on the cluster.
A closed switch is displayed as Active.

Vehicle Speed

The scan tool displays 0-255 km/h (0-155 mph). The IPC monitors the vehicle speed signal
circuit from the PCM.

Vehicle Speed Sensor

The scan tool displays 0-255 km/h (0-155 mph). The PCM monitors the voltage at the signal
circuit of the vehicle speed sensor. The voltage is proportional to the vehicle speed.

2007 Hummer H3

2007 ACCESSORIES & EQUIPMENT Displays and Gages - H3