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8
ERROR MESSAGES
Vehicle Communication Fault
If the tool exhibits a problem when com-
municating with the vehicle, a message
displays. The vehicle’s control mod-
ule(s) enters into an unrecoverable
state. Press
and the tool resets.
Operating Error or Erroneous Data
An
Operating Error
or
Erroneous Data
occurs if the vehicle’s computer(s) stops
communicating with the scan tool. When
this happens, the scan tool prompts you
to try again or return to the Function
List. Make a selection and press
.
Measure Voltage between
BAT + and GND pins.
Measure resistance
between GND pin and
frame ground.
Above 8V?
less than
5 ohms?
Is
battery fully
charged?
Contact Customer
Service Center.
Repair Ground
circuit. Refer to a
service manual.
Charge battery.
Scan Tool does not
power up.
NO
NO
NO
YES
YES
YES
Open exists in power
circuit. Check for a blown fuse
or an open wire. Refer to a
service manual.
PIN 16 (BAT+)
PIN 4 (GND)
PIN 2 (BAT+)
PIN 6 (GND)
J1962 (OBD II) DLC
LH DLC