SAS valve actuator
Function
Quickly warms up the catalytic converter and
keeps the combustion rich in some critical condi-
tions
Operation / Operating principle
The valve coil is excited to open the air passage
of the filter box to the exhaust manifold
Level in electrical circuit diagram:
Secondary air valve and lambda probe
Location:
•
on the vehicle: under throttle bodies, in
the V between the two front and rear
cylinders banks
•
connector: on the valve
Electrical characteristics:
Resistance at ambient temperature: 21 +3/- 1
Ω
Pin out:
1. Power supply V batt
2. Ground connection
DIAGNOSIS INSTRUMENT:
PARAMETERS
Secondary air valve duty cycle
•
Example value with key ON: 0 %
•
Example value with engine on: %
Used only at 0 or 100%
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING,
CAREFULLY READ THE GENERAL TROUBLESHOOTING
CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGIN-
NING OF THE CHECK AND CONTROL SECTION IN THE
ELECTRICAL SYSTEM CHAPTER.
DIAGNOSIS INSTRUMENT: LOGIC ERRORS
Secondary air valve control P0446
•
short circuit to positive/ short circuit to negative / open circuit
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 43. If shorted to negative/
open circuit: no voltage has been detected. The instrument panel does not indicate the
presence of this error even in the ATT status.
Troubleshooting
RSV4 Factory a-PRC
Electrical system
ELE SYS - 221
Summary of Contents for RSV4 Factory a-PRC 2009
Page 1: ...SERVICE STATION MANUAL 898952 RSV4 Factory a PRC ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 52: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 60: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 84: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 94: ... 7 REPLACE THE STARTER BUTTON COMPONENT END Troubleshooting RSV4 Factory a PRC TROUBL 94 ...
Page 95: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 249: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 270: ...INDEX OF TOPICS ENGINE ENG ...
Page 387: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 398: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 436: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 460: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 472: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 483: ...INDEX OF TOPICS BODYWORK BODYW ...