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Fiat Panda Factory Service Manual (2003-2012)23 · Fault diagnosis
23 · Diagnostics

Nbc missing error

Make
Fiat
Model
Panda Factory Service Manual
Year
2003–2012
Section
Examiner › Nbc missing error
Fault diagnosisNbc missing error

NBC MISSING ERROR

The diagnostic equipment signals the following error: "U1700 - Body computer node missing"

Smart gearbox

The diagnostic equipment signals the following error: "U1700 - Body computer node missing"

All versions

This error is signalled if the control unit does not detect the body computer

Smart gearbox

This error is signalled if the control unit does not detect the body computer

All versions

1CAN CONTROL UNITS FAULT DIAGNOSISAll OKProblems encounteredOperation
Carry out a fault diagnosis using the Examiner on the CAN control units to check for the presence of errors at the NBC - NPLMove on to Step 2 1
  • Presence of errors at CAN control units
  • Errors present in the Body Computer
  • Resolve the problem for the control unit where the error is present and continue to step 2
  • Resolve the problem for the body computer and continue to step 2
2CAN IMPEDANCE CHECKAll OKProblems encounteredOperation

Check the network impedence is correct

See Test 5505OA CAN LINE C CHECK

Move on to Step 4 1CAN faultMove on to Step 3 1
3SUPPLY CHECKAll OKProblems encounteredOperation
Check the Body Computer power supplyMove on to Step 4 1Body Computer power supply failureMove on to Step 6 1
4CHECK USING THE EXAMINERAll OKProblems encounteredOperation
Check that error U1701 (NCM missing) and that error U1717 (NGE missing) are not also present in the ABS control unit with the counter equal to or close to the reading for U1700 (NBC missing)Move on to Step 5 1Error U1717 present in the ABS control unitProceed as instructed for error U1717
5ELECTRICAL CHECKSAll OKProblems encounteredOperation
Check the continuity of the wiring for the CAN between the NGE and NBCMove on to Step 6 1Wiring faultyRestore the correct connection between the NGE and NPL NBC Move on to Step 6
6CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation

Delete the errors using the diagnostic equipment.

Carry out a road test

See Test 3350EA ESP SYSTEM ACTUATION CHECK

to ensure that the control unit checks whether there are any errors still present.

Return to the workshop and check that the fault is no longer present using the diagnostic equipment

End of diagnosis

Smart gearbox

1CAN CONTROL UNITS FAULT DIAGNOSISAll OKProblems encounteredOperation
Carry out a fault diagnosis using the Examiner on the CAN control units to check for the presence of errors at the NBC - NPLMove on to Step 2 1
  • Presence of errors at CAN control units
  • Errors present in the Body Computer
  • Resolve the problem for the control unit where the error is present and continue to step 2
  • Resolve the problem for the body computer and continue to step 2
2CAN IMPEDANCE CHECKAll OKProblems encounteredOperation

Check the network impedence is correct

See Test 5505OA CAN LINE C CHECK

Move on to Step 4 1CAN faultMove on to Step 3 1
3SUPPLY CHECKAll OKProblems encounteredOperation
Check the Body Computer power supplyMove on to Step 4 1Body Computer power supply failureMove on to Step 7 1
4CHECK USING THE EXAMINERAll OKProblems encounteredOperation
Check that the ABS does not contain errors U1717 (NGE absent) and U1711 (NCR absent with coutner equal to or close to U 1700 (NBC absent)Move on to Step 5 1The brake control unit also contains errors U1711 and U1717

Proceed as instructed for error U1717

Move on to Step 7 1

5CHECK USING THE EXAMINERAll OKProblems encounteredOperation
Check that the ABS does not contain error U1711 (NCR absent)Move on to Step 6 1Error U1711 present in the brake control unit

Proceed as instructed for error U1717

Move on to Step 7 1

6CHECK THE WIRINGAll OKProblems encounteredOperation

Check the continuity of the wiring between the Body Computer NCR and NPL.

See Test 5505OB CAN CONNECTION C CHECK

Move on to Step 7 1Fault in wiringRestore the correct connection between the Body Computer NCR and NPL
7CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation

Delete the errors using the diagnostic equipment.

Carry out a road test

See Test 3350EA ESP SYSTEM ACTUATION CHECK

to ensure that the control unit checks whether there are any errors still present.

Return to the workshop and check that the fault is no longer present using the diagnostic equipment

End of diagnosis

Parts & tools for this job For 2003 Fiat Panda

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