|
No.
|
Checking
|
Conditions for Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
01
|
Camshaft
sensor
|
|
|
92
|
A5
|
|
|
|
|
|
|
|
|
Note:
The camshaft sensor (Hall sensor) is used for cylinder
recognition. It informs the engine control unit about the crankshaft
revolution on which cylinder "1" ignites. This information is
required by the engine control unit for correct timing of fuel injection and
for the adaptive knock control.
If the camshaft sensor malfunctions, the engine control unit
uses a random point in time for actuation of the injector.
Malfunctioning of the camshaft sensor manifests itself as cold
start problems and increased fuel consumption.
|
|
Notes on
Trouble-shooting:
|
Nominal
Value:
|
Cause of
fault:
(If nominal
value is not attained)
|
|
· Ignition OFF
Disconnect wiring harness plug:
X10 plug, engine & injectors
(Corsa- B, Tigra)
P47 camshaft sensor (Astra- F)
|
|
|
|
· Using
multimeter, measure voltage
from: X10
plug, engine & injectors Ter. 6, 15, 17 (control unit side) (Corsa-
B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. A, B, C (control
unit side) (Astra- F)
to: ground
|
lower than 0.1 V
|
· Short circuit
to voltage
from: X10
plug, engine & injectors Ter. 6, 15, 17 (control unit side) (Corsa-
B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. A, B, C (control
unit side) (Astra- F)
to: battery
+, Ter. 30
|
|
· Ignition ON
· Using multimeter,
measure voltage
from: X10
plug, engine & injectors Ter. 15 (control unit side) (Corsa- B,
Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. A (control unit side)
(Astra- F)
to: ground
|
higher than 11 V
|
· Short circuit
to ground
from: X10
plug, engine & injectors Ter. 15 (Corsa- B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. A (control unit side)
(Astra- F)
to: S1
ignition lock Ter. 15
· S1 ignition
lock defective
· K57 engine
control unit defective
|
|
· Using multimeter,
measure voltage
from: X10
plug, engine & injectors Ter. 6 (control unit side) (Corsa- B,
Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. B (control unit side)
(Astra- F)
to: ground
|
4.5 to 6 V
|
· Short circuit
to voltage (with measured value higher than 6 V) or short circuit to
ground/ circuit interruption (with measured value lower than 4.5 V)
from: X10
plug, engine & injectors Ter. 6 (Corsa- B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. B (control unit side)
(Astra- F)
to: K57
wiring harness plug for engine control unit Ter. A5
· K57 engine
control unit defective
|
|
· Using
multimeter, measure voltage
from: X10
plug, engine & injectors Ter. 17 (control unit side) (Corsa- B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. C (control unit side)
(Astra- F)
to: ground
|
lower than 0.1 V
|
· Short circuit
to voltage
from: X10
plug, engine & injectors Ter. 17 (Corsa- B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. C (Astra-F)
to: battery
- , Ter. 31
|
|
· Using
multimeter, measure voltage
from: X10
plug, engine & injectors Ter. 17 (control unit side) (Corsa- B,
Tigra)
to: X10
plug, engine & injectors Ter. 15 (control unit side) (Corsa- B,
Tigra)
or
from: P47
wiring harness plug for camshaft sensor Ter. C (control unit side)
(Astra- F)
to: P47
wiring harness plug for camshaft sensor Ter. A (control unit side)
(Astra- F)
|
higher than 11 V
|
· Circuit
interruption
from: X10
plug, engine & injectors Ter. 17 (Corsa- B, Tigra)
from: P47
wiring harness plug for camshaft sensor Ter. C (control unit side)
(Astra- F)
to: battery
- , Ter. 31
|
|
|
If nominal values are attained
|
· P47 camshaft
sensor defective
|
|
|
|
|
|
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