User's Manual

Troubleshooting

Issue Possible Cause Remedy Notes

Status LED - Blinking or V2J is not detecting engine Check white lead (Switched

off - engine running RPM from ECM Power). It must have 8-

Call Zonar

Status LED - Solid - Switched power is When engine off White- Be sure to check engine

Engine off connected to an incorrect Switched power lead must off, key position ACC.

power source have 0 volts White-Switched power

lead must read 0 VDC

in this state

AUX/Alert LED solid or Internal issue Contact Zonar for a

blinking 3 minutes after replacement unit

engine start

All LEDs flashing The unit may be booting, For normal boot, give the

or receiving a Firmware unit up to 3 minutes to

update establish solid LEDs for GSM,

GPS, and Status. For a

Firmware update, give the

unit up to 25 minutes to

receive and install the

Firmware

DL1 (Jbus 1708) and/or This is normal with the None Normal Operation

DL2 (Jbus 1939) are engine running. Blinking

blinking Green at 1X per Green indicates that Jbus

second data is available from the

ECM. The DL1 and/or the

DL2 must blink green with

the engine running for the

system to work correctly

DL1 (Jbus 1708) are DL2 Engine not running Start Engine

(Jbus 1939) are both off

(Other LEDs appear to be

functioning normally)

Jbus Cable not connected Connect Jbus Cable

Jbus Cable faulty Test with known good cable

Vehicles Jbus connector Verify pinout and electrical

miswired values from manufactures

specifications

DL1 (Jbus 1708) and/or Normal Boot Sequence None Normal Operation

DL2 (Jbus 1939) are Red at

1X per second

TROUBLESHOOTING