Diagnosis And Testing

WARNING: This page is about a different car, the 2021 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT DOES NOT START

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit relay terminal	Check that terminal 6 of the T- BOX control unit, which controls the starter block relay, is inserted correctly.	Go to Step 2	Terminal 6 is not inserted correctly in the Mopar® Connect Telematic Box control unit.	Insert terminal 6 correctly in the Mopar® Connect Telematic Box control unit.
2	Mopar® Connect Telematic Box control unit relay wiring	Check for faults in the Mopar® Connect Telematic Box control unit relay wiring.	Go to Step 3	There are faults in the Mopar® Connect Telematic Box control unit relay wiring.	Repair the Mopar® Connect Telematic Box control unit relay wiring.
3	Mopar® Connect Telematic Box control unit relay	Check that the Mopar® Connect Telematic Box control unit relay is working.	Go to Step 4	The Mopar® Connect Telematic Box control unit relay is not working.	Replace the Mopar® Connect Telematic Box control unit relay. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .
4	Mopar® Connect Telematic Box control unit	Check that the Mopar® Connect Telematic Box control unit is working correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit is not working correctly.	Replace the Mopar® Connect Telematic Box control unit. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT LED ALWAYS ON

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit power supply	Check the +30 or +15 power supplies on the Mopar® Connect Telematic Box control unit fuse tap.	End of diagnosis	The power supplies on the Mopar® Connect Telematic Box control unit fuse tap are not correct.	Repair the correct +30 or +15 power supplies on the Mopar® Connect Telematic Box control unit fuse tap.

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT LED ALWAYS OFF

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit fuse tap	Check that the Mopar® Connect Telematic Box control unit fuse tap is working correctly.	Go to Step 2	The Mopar® Connect Telematic Box control unit fuse tap is not working correctly.	Replace the Mopar® Connect Telematic Box control unit fuse tap (and investigate the cause of the malfunction).
2	Mopar® Connect Telematic Box control unit ground	Check that the Mopar® Connect Telematic Box control unit ground point is tightened correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit earth point is not tightened correctly.	Tighten the Mopar® Connect Telematic Box control unit earth point correctly.

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT CONTINUALLY IN CRASH

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit fastening	Check that the Mopar® Connect Telematic Box control unit is fastened correctly.	Go to Step 2	The Mopar® Connect Telematic Box control unit is not fastened correctly.	Fasten the Mopar® Connect Telematic Box control unit correctly (fasten it with velcro bands).
2	Mopar® Connect Telematic Box control unit	Check that the Mopar® Connect Telematic Box control unit is working correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit is not working correctly.	Replace the Mopar® Connect Telematic Box control unit. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT IN HOLD - THREE LED FLASHES

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit position	Check that the Mopar® Connect Telematic Box control unit is positioned correctly.	Go to Step 2	The Mopar® Connect Telematic Box control unit is not positioned correctly.	Position the Mopar® Connect Telematic Box control unit correctly to receive the best Global Positioning System (GPS) signal.
2	Mopar® Connect Telematic Box control unit	Check that the Mopar® Connect Telematic Box control unit is working correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit is not working correctly.	Replace the Mopar® Connect Telematic Box control unit. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT DOES NOT TRANSMIT GSM - FOUR LED FLASHES

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit position	Check that the Mopar® Connect Telematic Box control unit is positioned correctly.	Go to Step 2	The Mopar® Connect Telematic Box control unit is not positioned correctly.	Position the Mopar® Connect Telematic Box control unit correctly to receive the best Global System for Mobile (GSM) signal.
2	Mopar® Connect Telematic Box control unit	Check that the Mopar® Connect Telematic Box control unit is working correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit is not working correctly.	Replace the Mopar® Connect Telematic Box control unit. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .

MOPAR® CONNECT TELEMATIC BOX CONTROL UNIT CHANGES FROM ON TO OFF AND OFF TO ON WITH THE VEHICLE IN MOTION

STEP	COMPONENT	CHECK	NO FAULT DETECTED	FAULT DETECTED	REPAIR
1	Mopar® Connect Telematic Box control unit connections	Check that the pins correctly make contact with the Mopar® Connect Telematic Box control unit connector.	Go to Step 2	There is a ineffective connection between the terminals and the Mopar® Connect Telematic Box control unit connector.	Repair the correct connection between the terminals and the Mopar® Connect Telematic Box control unit connector.
2	Mopar® Connect Telematic Box control unit	Check that the Mopar® Connect Telematic Box control unit is working correctly.	End of diagnosis	The Mopar® Connect Telematic Box control unit is not working correctly.	Replace the Mopar® Connect Telematic Box control unit. Refer to BOX, MOPAR CONNECT TELEMATIC, REMOVAL AND INSTALLATION .