323000834 - K125 DISPLAY DOES NOT SHOW RANGE ON TRIP MODULE

With the key to MAR, the range reading on the display (one of the displays on the TRIP COMPUTER module) is not operational.

The display shows the range processed by the instrument panel node on the basis of information received from the body computer node (distance and fuel level as a percentage) and from the engine management node (consumption) made available to the instrument panel node via the B-CAN and C-CAN networks respectively. This data is then adjusted proportionally according to the tank capacity programmed at the EOL.In the absence of speed information (from the Brake Node) or instantaneous fuel consumption data (from the Engine Control Node) or fuel level (from the Body Computer), the range information will be replaced by the reading "----"

		TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Interview the customer to check that the TRIP function has not been recently resetCheck that the fuel gauge shows a sufficient quantity of fuel	Move on to Step 1	1.One of the TRIP COMPUTER functions has been reset2. Insufficient amount of fuel	1.The display reading will be "----" until sufficient distance has been covered to allow fuel consumption to be evaluated: if the value is not displayed after a few kilometres, continue to Step 12.Refill with a sufficient amount of fuel
1	CAN CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect an EXAMINER and check the following on CAN NETWORK INFORMATION:- No control units inactive- No faulty control units- No control units with faulty CAN line	Move on to Step 2	1. Fault on CAN network2. Communication with the Body Computer impossible	1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 9
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the diagnostic instrument connected, check the following on the BRAKE NODE:- that there are no system/component errors- that there are no CAN faults	Move on to Step 3	1. System/components faulty2. Fault on C-CAN network	1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 10
3	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the diagnostic instrument connected, check the following on the ENGINE CONTROL NODE:- that there are no system/component errors- that there are no CAN faults	Move on to Step 4	1. System/components faulty2. Fault on C-CAN network	1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 10
4	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the diagnostic instrument connected, check the following on the INSTRUMENT PANEL NODE:- that there are no system/component errors- that there are no CAN faults	Move on to Step 5	1. System/components faulty2. Fault on C-CAN network	1. Continue following the instructions given by the diagnostic equipment2. Move on to Step 10
5	ACTIVE DIAGNOSIS CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the Examiner in Instrument Panel Node mode check that all segments of the LCD module activate correctly in Active Diagnosis	Move on to Step 8	1. One or more segments do not activate2. Communication with the instrument panel impossible	1. Replace the Instrument Panel    Op. 5560B10 CONTROL PANEL - R+R 2. Move on to Step 6
6	ELECTRICAL POWER SUPPLY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the electricity supply to the Instrument Panel Node is correct.	Move on to Step 7	Fault in positive electrical supply and/or earth	Replace defective component (in the case of a fuse, find out what caused it to blow)
7	ELECTRICAL CONNECTIONS CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the electrical connections between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected	Move on to Step 5	Electrical connections not operational	Renew the damaged electrical connections
8	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Using an Examiner check, in Body Computer Node mode, that there are no errors	Move on to Step 9	1. Impossible to connect to the Body Computer control unit2. Presence of errors	1. Move on to Step 92. Continue by following the instructions on the diagnostic instrument
9	ELECTRICAL POWER SUPPLY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the electricity supply to the Body Computer Node is correct.	Move on to Step 10	Fault in positive electrical supply and/or earth.	Replace defective component (in the case of a fuse, find out what caused it to blow).
10	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Use an Examiner to check the possibility of connection to the Body Computer Node	End of diagnosis	Impossible to connect to the Body Computer control unit.	Replace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.