•
short circuit to positive/ open circuit, short circuit to negative
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 44 of the ENGINE con-
nector. If the circuit is open, shorted to negative: voltage equal to zero has been detected
at PIN 44 of the ENGINE connector. The instrument panel does not indicate the presence
of this error even in the ATT status.
Troubleshooting
•
If shorted to positive: disconnect the probe connector and check the correct resistance of
the sensor: if not OK replace the sensor; if OK restore the cable harness (black cable).
•
If circuit is open, shorted to negative: check circuit continuity from probe connector (PIN 3
and 4) toward the probe: if it is not OK, replace the probe; if it is OK, check the sensor
connector and the Marelli control unit connector: if it is not OK, restore; if it is OK, with key
set to ON and sensor connector disconnected, check if there is battery voltage at PIN 4: if
it is not OK, check the Red/Brown cable continuity between the probe connector and the
auxiliary injection relay (No. 46 in the wiring diagram, placed in the front relay box, left side;
CHECK, however, the identification of the relay with the colour of the cables). If there are
also coil, lower and upper injector and secondary air errors, check the relay and its excitation
and power line; if there is voltage at PIN 4, check the Black cable ground insulation (PIN 3):
if not OK, restore the cable harness. If it is OK, check the continuity of the Black cable
(between the sensor connector PIN 3 and the ENGINE PIN 44) and restore the cable har-
ness.
WARNING
The control unit does not detects the following malfunctions of the oxygen sensor circuit according to
the signal: interrupted circuit, shorted to ground or sensor malfunction (for example non variable volt-
age). In case of fault indication, carry out the following troubleshooting.
Injector
Injectors key:
1. Front cylinder internal injector (Marelli)
2. Rear cylinder internal injector (Marelli)
3. Front cylinder external injector (Synerject)
4. Rear cylinder external injector (Synerject)
Electrical system
CAPONORD 1200
ELE SYS - 134
Содержание CAPONORD 1200
Страница 1: ...MANUALE STAZIONE DI SERVIZIO 2Q000020 CAPONORD 1200 ...
Страница 6: ......
Страница 7: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Страница 55: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Страница 62: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Страница 73: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Страница 74: ...Engine Troubleshooting CAPONORD 1200 TROUBL 74 ...
Страница 75: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Страница 80: ...key 1 MULTIPLE CONNECTORS Electrical system CAPONORD 1200 ELE SYS 80 ...
Страница 83: ...key 1 MULTIPLE CONNECTORS CAPONORD 1200 Electrical system ELE SYS 83 ...
Страница 97: ...Control unit Unscrew and remove the control unit cover screws CAPONORD 1200 Electrical system ELE SYS 97 ...
Страница 185: ...Dashboard Grey bodied instrument panel pinout key 1 Live supply CAPONORD 1200 Electrical system ELE SYS 185 ...
Страница 194: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Страница 209: ...See also Vehicle preparation Adjusting CAPONORD 1200 Engine from vehicle ENG VE 209 ...
Страница 210: ...INDEX OF TOPICS ENGINE ENG ...
Страница 294: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Страница 295: ...Fuel pump Injection CAPONORD 1200 Power supply P SUPP 295 ...
Страница 296: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Страница 339: ...INDEX OF TOPICS CHASSIS CHAS ...
Страница 353: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Страница 378: ...INDEX OF TOPICS CLUTCH SYSTEM CLU SYS ...
Страница 380: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Страница 388: ...INDEX OF TOPICS BODYWORK BODYW ...
Страница 428: ... Disconnect the voltage regulator Cut and remove the clamp Release the cables Bodywork CAPONORD 1200 BODYW 428 ...
Страница 429: ... Remove the relay box Cut and remove the clamp Remove the inside fairing CAPONORD 1200 Bodywork BODYW 429 ...
Страница 430: ...INDEX OF TOPICS ...
Страница 431: ...PRE DELIVERY PRE DE ...
Страница 439: ...Tyres 15 W Warning lights Water pump 383 Wiring diagram 79 ...