User Manual

573904 | REV. B | 03.2016
Bosch Automotive Service Solutions Inc.
CP9670 AutoScanner®
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User guide | 33
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en
6 Troubleshooting
6.1 Error Messages
Check the following if an error message displays:
• Verify ignition key is in the ON and not in the ACCES-
SORIES position.
• Make sure the DLC Cable is attached to vehicle’s
data link connector (DLC) and scan tool.
• Look at DLC and check for cracked or recessed pins,
or for any substance that could prevent a good
electrical connection.
• Test for continuity between the DLC wiring and the
computer. In an extreme case, there may be a bro-
ken wire.
• Check for bent or broken pins.
• With the engine off, check for blown fuses in the
vehicle fuse box.
• Make sure the vehicle’s control module has a good
ground. If the computer case is grounded, then
clean the connection and apply a conductive (dielec-
tric) grease to the mating surfaces.
• With the key on engine off (KOEO), verify vehicle
battery voltage is at least 8.0V.
• Verify the control module is not defective.
6.2 Scan Tool Does Not Power Up
WARNING
Review “Safety Messages” on page 5
before troubleshooting.
If scan tool will not power up, communicate with vehicle
control module, pass scan tool self-tests, or functions
incorrectly in any other way, do the following:
• Clean the DLC pins.
• Disconnect and reconnect DLC making sure it is
connected correctly.
• Check vehicle battery to make sure at least 8.0 volts
is present.
• Contact customer service.
• With the engine off, check for blown fuses in the
vehicle fuse box.
6.3 Vehicle Communication Fault
The vehicle’s control module(s) enters into an unrecov-
erable state.
1. Turn vehicle key to off position.
• Wait 10 seconds.
• Press .
6.4 Operating Error or Erroneous Data
An Operating Error or Erroneous Data occurs if vehicle’s
computer(s) stop(s) communicating with the scan tool.
1. Make selection.
• Use the and keys.
• Press .
6.5 Tool Self-Tests
Tool Self-Tests check the display, keys, and internal
memory.
• Refer to “4 Using the Scan Tool” on page 10 for
the operation procedures for scan tool self-tests.
6.6 Technical Support
Toll-Free Number: 1-800-228-7667.