APRILIA SHIVER 900 Service Station Manual page 151

SHIVER 900
Electrical continuity is required in the wiring for the relay to activate correctly: no errors are
generated in case of no activation.
DIAGNOSTIC TOOL: ELECTRICAL ERRORS
P0130 Front lambda probe
Electrical diagnosis:
•
Short circuit to positive.
Error cause:
•
Excessive voltage detected (battery voltage) at PIN 10 and 22 of the ENGINE connector.
Caution: the "lambda probe" parameter is not the actual read value but a recovery value is
displayed.
The instrument panel indicates this error by lighting up in a fixed manner the MI warning light.
Troubleshooting:
•
Short-circuit to positive: with key set to ON, disconnect the sensor connector and measure
PIN 1 voltage on the cable harness side (yellow/orange cable): if the voltage (5 or 12 V) is
present, restore the wiring harness, if the voltage is absent replace the lambda probe.
P0135 Front lambda probe heating
Electrical diagnosis:
•
short circuit to positive/ open circuit / short circuit to negative
Error cause
•
Short-circuit to positive: an excessive voltage was detected at PIN 32 of the ENGINE con-
nector.
•
If open circuit, short circuit to negative: a voltage equal to zero was detected at PIN 32 of
the ENGINE connector.
The instrument panel indicates this error by lighting up in a fixed manner the MI warning light.
Troubleshooting
•
Short-circuit to positive: disconnect the probe connector and check the correct sensor re-
sistance: if NOT OK, replace the sensor; if OK, restore the wiring harness (Green/Black
cable).
•
If open circuit, short circuit to negative: check the continuity from the probe connector (PIN
3 and 4) to the probe: if NOT OK, replace the probe; if ok, perform the check procedure for
the sensor connector and for the Marelli control unit connector: if NOT OK restore; if OK,
with the key ON and the sensor connector disconnected, check if there is battery voltage at
PIN 4: if NOT OK, check the continuity of the Red/Brown cable between the probe connector
and the injection relay (no. 17 in the electrical circuit diagram, position under the left side of
the tank; however, CHECK the relay identification with the cable colours); if there are also
errors regarding the coils, injectors and secondary air, check the relay and its energy and
power line; if there is voltage at PIN 4, check ground insulation of the Green/Black cable
Electrical system
ELE SYS - 151