|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
16
|
EGR POSITION CMD
|
Engine running at idle speed, operating temperature
Vehicle travelling at approx. 20 km / h
(12.5 mph)
|
0 %
greater than 1 %
|
47
|
A 9
|
|
Trouble - shooting:
|
Nominal Value:
|
Cause of Fault:
(If nominal value is not attained)
|
|
Part 1
· Ignition
OFF
· Remove
plugs from the throttle valve potentiometer P 34, intake manifold
pressure sensor P 23.
coolant temperature sensor P 30, exhaust gas
recirculation valve Y 18, exhaust gas recirculation module V 15 and
control unit K 57.
|
|
|
|
· Ignition
ON
· Measure
voltage:
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. A
to: ground
and
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. D
|
greater than 11 V
greater than 11 V
|
· Lead
interruption
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. A
to: ignition
lock S 1 Ter. 15
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. D
from: ground
· Short
circuit in wiring harness
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. A
from: ground
|
|
· Measure
voltage:
from: ground
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. D, B, and C
|
less than 0.1 V
|
· Short
circuit in wiring harness
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. D
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. A
from: battery +
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. B
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. C
|
|
· Ignition
OFF
· Using
multimeter, measure resistance:
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. B
to: ground
and Ter. C
|
greater than 100 kW
|
· Short
circuit in wiring harness
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. B
to: ground
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. C
|
|
· Measure
resistance:
from: control
unit plug K 57 Ter. A 9
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. B
|
less than 2 W
|
· Lead
interruption
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. B
to: control
unit K 57 Ter. A 9
|
|
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. C
to: ground
and
|
greater than 100 kW
|
· Short
circuit in wiring harness
from: wiring
harness plug, exhaust gas recirculation module V 15 Ter. C
to: ground
|
|
to: wiring
harness plug, exhaust gas recirculation valve Y 18 Ter. A
|
less than 2 W
|
· Lead
interruption
from: wiring
harness plug, exhaust gas recirculation valve Y 18 Ter. A
to: wiring
harness plug, exhaust gas recirculation module V 15 Ter. C
|
|
from: exhaust
gas recirculation module V 15 Ter. A (ground contact, multimeter)
to: exhaust
gas recirculation module V 15 Ter. B (V / W contact, multimeter)
|
2 kW ± 200 W
|
· Exhaust
gas recirculation module V 15 defective.
|
|
from: exhaust
gas recirculation module V 15 Ter. C (ground contact, multimeter)
to: exhaust
gas recirculation module V 15 Ter. A, B. D (V / W contact,
multimeter)
|
greater than 100 kW
|
· Exhaust
gas recirculation module V 15 defective.
|
|
from: exhaust
gas recirculation module V 15 Ter. D (ground contact, multimeter)
to: exhaust
gas recirculation module V 15 Ter. A, B (V / W contact, multimeter)
|
approx. 50 kW
|
· Exhaust
gas reeirculation module V 15 defective.
|
|
Connect wiring harness plug of exhaust gas recirculation
module V 15
· Ignition
ON
· Measure
voltage:
from: wiring
harness plug, exhaust gas recirculation module Y 18. A
to: battery +
|
less than 0.1 V
|
· Exhaust
gas recirculation module V 15 defective.
|
|
Bridge control unit plug Ter. A 9 to ground
· Measure
voltage:
from: wiring
harness plug, exhaust gas recirculation module Y 18 Ter. A
to: battery +
|
greater than 11 V
|
· Exhaust
gas recirculation module V 15 defective.
|
|
Part 2
· Ignition
ON
· Measure
voltage:
from: wiring
harness plug, exhaust gas recirculation valve Y 18 Ter. E
to: ground
|
greater than 11 V
|
· Lead
interruption
from: wiring
harness plug, exhaust gas recirculation valve Y 18 Ter. E
to: ignition
lock S 1 Ter. 15
· Short
circuit in wiring harness
from: wiring
harness plug, exhaust gas recirculation valve Y 18 Ter. E
to: ground
|
|
· Ignition
OFF
· Connect
exhaust gas recirculation valve Y 18 Ter. E to + 12 V
· Pulse
exhaust gas recirculation valve Y 18 Ter. A to ground
|
The exhaust gas recirculation valve is audibly activated
|
|
|
· Using
multimeter, measure resistance:
from: exhaust
gas recirculation valve Y 18 Ter. A
to: exhaust
gas recirculation valve Y 18 Ter. E
|
7.8 to 8.6 W
(at 20 C / 68° F)
9.5 to 10.3 W
(at 80 °C / l76 °F)
|
· Exhaust
gas recirculation valve Y 18 defective.
|
|
|
If nominal values attained
|
· Control
unit defective
· Exhaust
gas recirculation valve spindle broken
|
|
|
|
|
|
|
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|
