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GM Enhanced (OBD II) Diagnostics
5
Use the
UP/DOWN
arrow keys to view the DTCs. Use the
LEFT/RIGHT
arrow keys to toggle the DTC definition and status screen.
Press
FUNC
to return to the GM Function List.
Pending Codes
Refer to “Pending Codes” on page4-4 of Global OBDII Diagnostics.
Erase Codes
The Erase Codes menu has a menu asking what module to erase codes for, if
more than one module exists for this vehicle.
View Data
The View Data function allows you to view the vehicle’s Parameter
Identification (PID) data in real time. As the computer monitors the vehicle, the
information is simultaneously transmitted to the scan tool. Apart from Read
Codes, View Data is the most useful diagnostic function for isolating the cause
of a vehicle operation problem. Viewing data is also used for observing sensor
data and the status of switches, solenoids, and relays.
Select View Data from theGM
Function List and press
ENTER
.
If vehicle supports more than one
module select the module to view.
✓The selection menu does not appear
if only one module is present.
ENG
CURR P0201
Injector Circuit
Open [
Cylinder 1
ENG
CURR P0201
MIL REQUESTED
Since IGN FAIL [
Since Clear P/F
GM Function List ?
4)Erase Codes ]
`5)View Data [
6)View Freeze Data ~
Select Module
Engine
`Transmission
Transfer Case