Moto Guzzi V85 TT - Service manual > Fuses

To check:

• Set the ignition switch to 'OFF' to avoid an accidental short circuit.
• Remove the saddle.
• Remove the fuse box cover.
• Take out one fuse at a time and check if the filament is broken.
• Before replacing the fuse, find and solve, if possible, the reason that caused the problem.
• If the fuse is damaged, replace it with one of the same current rating.

NOTE IF THE SPARE FUSE IS USED, REPLACE WITH ONE OF THE SAME TYPE IN THE CORRESPONDING FITTING.

MAIN FUSES

These are located underneath the saddle on the LH side

SECONDARY FUSES

These are located underneath the saddle on the RH side

Control unit

REMOVAL

• Remove the saddle
• Unscrew and remove the screws (1)

• Disconnect the connectors (2)
• Remove the ECU (3)

NOTE WHEN REASSEMBLING THE CONNECTORS, THE SLIDES MUST SLIDE FREELY UP TO THE LIMIT STOP, THUS FACILITATING THE CONNECTOR'S INSERTION. THE CATCH SHOULD SNAP INTO PLACE ONCE THE LIMIT STOP IS REACHED.

P160C Level 2 safety reset

Error cause:

• Due to the fact that the level 2 safety system (comparison between requested torque and calculated torque) detected a fault, the control unit reset the engine (severity C).

The instrument panel does not indicate the presence of this error even in the ATT status.

Troubleshooting:

• Perform the troubleshooting for the other detected errors

P1650 Engine events configuration Checksum calculation error

Error cause:

• Corrupt Flash-eeprom (hardware problem).
• Upload (e.g. in service) of an incompatible software version, therefore missing the reference check-sum.

This error is indicated by lighting up in a fixed manner the general warning light.

Troubleshooting:

• Call the Help Desk.

Can line

U0140 CAN line to the instrument panel

Electrical diagnosis:

• no signal.

Error cause:

• No signal is received from the instrument panel.

This error is indicated by lighting up in a fixed manner the general warning light.

Troubleshooting:

• Check the connector of the instrument panel: if not OK, restore; if OK, check the continuity of the two lines from the instrument panel connector to the VEHICLE connector of the Marelli control unit: if not OK, restore the cable harness; if OK, replace the instrument panel.

NOTE THE PRESENCE OF THIS ERROR DETERMINE THE DEACTIVATION OF THE TRACTION CONTROL AND THE CRUISE CONTROL.

U1121 Diagnosis of "ABS control unit" CAN line or CLF frame counter

Functional diagnosis:

• Signal absent

Error cause:

• If there is no signal, no signal is received from the ABS control unit.

This error is indicated by lighting up in a fixed manner the MI warning light.

Troubleshooting:

• Missing signal - Perform the check procedure for pin 2 and 11 of the ABS control unit connector, for pin 66 and 80 of the Marelli control unit vehicle connector: if NOT OK, restore; if OK with key OFF, disconnect the ABS control unit connector; if NOT OK replace the wiring harness, if OK check the correct power supply to PIN 18 (12V) and the grounding of ABS control unit PIN 1; if NOT OK, restore the wiring harness, if OK, replace the ABS control unit.

NOTE THE PRESENCE OF THIS ERROR DETERMINE THE DEACTIVATION OF THE TRACTION CONTROL AND THE CRUISE CONTROL.

See also: