APRILIA Tuono V4 1100 Factory Service Station Manual page 172

Electrical system
Electrical diagnostic:
•
short circuit to positive / short circuit to negative / open circuit
Error cause:
•
Short-circuit to positive: excessive voltage has been detected on PIN 31.
•
If short circuit to negative: no voltage has been detected.
•
If open circuit: an interruption has been detected.
The instrument cluster indicates the presence of this error with the general warning light on fixed.
Troubleshooting
•
Short-circuit to positive: check the correct electrical characteristics of the relay by discon-
necting it from the wiring harness, if not ok replace the relay, if ok restore the wiring harness
(blue/pink cable)
•
If short circuit to negative: check the correct electrical characteristics of the relay by discon-
necting it from the wiring harness, if not ok replace the relay, if ok restore the wiring harness
(blue/pink cable)
•
If open circuit: check the correct electrical characteristics of the relay by disconnecting it
from the wiring harness, if not ok replace the relay, if ok perform the check procedure for
the relay connector, the engine-vehicle wiring harness connector and the ENGINE connec-
tor for the Marelli control unit: if not ok restore, if ok check the continuity of the wiring harness
(blue/pink cable)
DIAGNOSTIC TOOL: LOGIC ERRORS
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 cluster does not indicate the presence of this error even in the ATT status.
Troubleshooting:
•
Perform the troubleshooting for the other detected errors
P060C Safety Engine Stop
Error cause:
•
Due to the fact that the safety system detected a serious fault, the control unit has stopped
the engine.
The instrument cluster indicates this error by lighting up in a fixed manner the MI warning light and the
general warning light.
Troubleshooting:
•
Perform the troubleshooting for the other detected errors.
NOTE
THIS ERROR GENERATES THE RECOVERY STATUS AND ENGINE SHUT-DOWN.
ELE SYS - 172
Tuono V4 1100 Factory