Error Messages; Vehicle Communication Fault; Operating Error Or Erroneous Data - Actron Professional Enhanced Scan Tool 9640A User Manual

Help & Troubleshooting
PIN 2 (BAT+)
PIN 6 (GND)
Scan Tool
power up.
Measure Voltage between
BAT + and GND pins.
Above 8V?
Contact Customer
Service Center.

ERROR MESSAGES

8

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

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
E N T E R
8 – 2 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
LH DLC
does not
NO
YES
and the tool resets.
E N T E R
.
PIN 16 (BAT+)
Is
battery fully
charged?
YES
Measure resistance
between GND pin and
frame ground.
less than
5 ohms?
YES
Open exists in power
circuit. Check for a blown fuse
or an open wire. Refer to a
service manual.
PIN 4 (GND)
J1962 (OBD II) DLC
NO
Charge battery.
Repair Ground
NO
circuit. Refer to a
service manual.