Qualcomm OBDII J1708 Troubleshooting Guide download pdf (Page 13)

80-J9325-1 Rev. C 2-5

MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION

System Verification and Troubleshooting LED Troubleshooting Table for 65-J9322-1

For additional support, call QES Customer Support at (800) 541-7490.

LED

Ignition

State State Possible Causes Solution

Red ON Engine

running

Correct if

Green LED is

also ON

n/a n/a

Red ON Key ON/

Engine OFF

Incorrect on all

but Sprinter

Vehicle not detected yet.

No data on OBDII connector.

OBDII Converter fault.

Wait at least 30 seconds in this state for the

OBDII Converter to detect vehicle parameters.

Check data using another scan tool.

Swap OBDII Converter with a known good

device; replace device if appropriate.

Red ON Ignition OFF Correct for

initial install

before engine

has started.

Detecting

vehicle

Vehicle does not support

OBDII.

Loose connections on OBDII

Converter connector.

OBDII Converter fault.

Verify vehicle make/model/year are supported

by the firmware.

Check communications with OEM scan tool

Swap OBDII Converter with a known good

device; replace device if appropriate.

Red flashing

0.5 seconds

OFF/2

seconds ON

any incorrect OBDII Converter fault Swap OBDII Converter with a known good

device; replace device if appropriate

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