•
Short circuit to positive
Error cause:
•
Excessive voltage detected (battery voltage) at PIN 9 and 38 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
P0155 Front bank 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 44 of the ENGINE con-
nector.
•
If open circuit, short circuit to negative: a voltage equal to zero was detected at PIN 44 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 (Black/Violet
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. 33 in the electrical circuit diagram, position under the saddle,
close to the battery positive; however, CHECK the relay identification with the cable colours);
if there are also errors regarding the coils, lower and upper 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 Black/Violet cable (PIN 3): if NOT OK, restore the wiring harness; if OK,
check the continuity of the Black/Violet cable (between PIN 3 of the sensor connector and
ENGINE PIN 44) and restore the wiring harness.
WARNING
The control unit does not detect the following malfunctions of the lambda probe circuit relative
to the signal: interrupted circuit, short circuit to ground or malfunction of the sensor (for ex-
Electrical system
RSV4 1100 Factory
ELE SYS - 166
Summary of Contents for RSV4 1100 Factory
Page 1: ...SERVICE STATION MANUAL 2Q000401 RSV4 1100 Factory ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 55: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 63: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 89: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 245: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 270: ...INDEX OF TOPICS ENGINE ENG ...
Page 384: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 387: ... Remove the fuel pump Injection RSV4 1100 Factory Power supply P SUPP 387 ...
Page 393: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 417: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 455: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 457: ...Operating diagram ABS functional diagram key RSV4 1100 Factory Braking system BRAK SYS 457 ...
Page 488: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 499: ...INDEX OF TOPICS BODYWORK BODYW ...
Page 540: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 546: ... Fit the two seater saddle Pre delivery RSV4 1100 Factory PRE DE 546 ...