|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
|
12
|
VEHICLE SPEED
|
Test drive
The TECH 1 display indicates the
actual speed, the speedometer display may deviate from this by approx. 5 to
10 %
|
50 km/h, 30 MPH
|
24
|
C
4, B 2/ D 1
|
|
|
IMPORTANT: If,
after removing the radio, the nominal value according to the above conditions
for checking is atttained, i.e. trouble code 24 is not stored, the leads for
ground and the speed signal in radio plug X 69 are mixed up.
Before starting trouble-shooting, check that the
correct odometer frequency sensor is installed. P 14 or sensor in
instrument P 21
|
|
Trouble-shooting:
|
Nominal Value:
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
|
Only for vehicles with
odometer frequency sensor P
14
terminal assignment under
protective cap on wiring harness coupling
|
|
|
|
|
· Ignition OFF
· Disconnect odometer
frequency sensor plug P 14
· Measure voltage:
from: wiring harness coupling P 14 Ter. 1
to: wiring harness coupling P 14 Ter. 3
· Ignition ON
|
11.5 to 13.5
volts
|
· Lead interruption
from: ignition lock Ter. 15
to: P 14 Ter. 1
or
from: P 14 Ter. 3
to: ground
|
|
|
· Measure voltage:
from: wiring harness coupling P 14 Ter. 2
to: wiring harness coupling P 14 Ter. 3
· Ignition ON
|
greater than
10 volts
|
· Lead interruption
from: wiring harness coupling P 14 Ter. 2
to: control unit K 57/K 91 Ter. B 2
|
|
|
· Ignition OFF
· Bridge lead temporarily*:
from: wiring harness coupling P 14 Ter. 2
to: ground
· Engine running at idle
speed
· Connect lead to wiring
harness plug P 14 Ter. 2 and draw the free end over the ground terminal of
the battery.
|
TECH 1
displays speed
RECEIVED
|
· Control unit K 57/K 91
defective
|
|
|
For
Corsa-B with odometer frequency sensor in instrument P 21:
|
|
|
|
|
· Check voltage supply of
instrument:
· Ignition ON
· Lamp ON
|
Instrument
illumination ON
Engine
telltale H 30 ON
|
· Fuse F 17 defective
· Fault in instrument
illumination.
|
|
|
· Ignition OFF
· Disconnect plug X 5
(Corsa-B) from control unit to odometer frequency sensor in instrument
· Bridge lead temporarily*:
from: X 5 Ter. 7 (Corsa-B)
to: ground
· Engine running at idle
speed
|
|
· Lead interruption
from: X 5 Ter. 7 (Corsa-B)
to: control unit K 57 Ter. B 2
· Control unit K 57
defective
|
|
|
· Connect lead to wiring
harness plug X 5 Ter. 7 and draw free end over door check strap.
|
TECH 1
displays speed
RECEIVED
|
|
|
|
· Ignition OFF
· Disconnect plug from
instrument X 17
· Using multimeter, measure
voltage:
from: wiring harness plug X 5 Ter. 7 (Corsa-B)
to: plug X 17 Ter. 25
|
less than 2 W
|
· Lead interruption
from: wiring harness plug X 5 Ter. 7 (Corsa-B)
to: plug X 17 Ter. 25
|
|
|
· Disconnect plug from
Triple-Info-Display X 23
· Using multimeter, measure voltage:
from: wiring
harness plug X 5 Ter. 7
to: plug
X 23 Ter. 12
|
less than 2 W
|
· Lead interruption
from: wiring
harness plug X 5 Ter. 7
to: plug
X 23 Ter. 12
|
|
|
· Using multimeter, measure
voltage:
from: wiring harness plug X 5 Ter. 7
to: ground
|
greater than
22 kW
|
· Short circuit in wiring
harness to ground
from: wiring harness plug X 5 Ter. 7
to: wiring harness plug X 17 Ter. 25
or
from: wiring harness plug X 5 Ter. 7
to: wiring harness plug X 23 Ter. 12
|
|
|
· Test drive:
Drive
vehicle at approx. 30 km/h (18 mph)
|
Speed
displayed in instrument:
approx. 30
km/h (18 mph)
TECH 1
display:
approx. 30
km/h (18 mph)
|
· Instrument defective
· Printed circuit board
defective
|
|
|
For Astra-F with odometer
frequency sensor in instrument P 21:
|
|
|
|
|
· Check voltage supply of
instrument:
· Ignition ON
· Lamp ON
|
Instrument
illumination ON
Engine
telltale H 30 ON
|
· Fuse F 7 defective
· Fault in instrument
illumination.
|
|
|
· Ignition OFF
· Disconnect plug X 9
(Astra-F) from control unit to odometer frequency sensor in instrument
· Adapt lead X 9 Ter. 6 and
Ter. 7 with Elektronic-Kit KM-609
· Bridge lead temporarily*:
from: X 9 Ter. 4 (Astra-F)
to: ground
· Engine running at idle
speed, operating temperature
* Connect lead to wiring harness plug X 9 Ter. 2 and draw the free
end over the door check strap (ground).
|
TECH 1
displays speed
RECEIVED
|
· Lead interruption
from: X 9 Ter. 4 (Astra-F)
to: control unit K 91 Ter. B 2
· Control unit K 91
defective
|
|
|
· Ignition OFF
· Disconnect plug from
instrument X 21
· Using multimeter, measure
voltage:
from: wiring harness plug X 9 Ter. 4 (Astra-F)
to: plug X 21 Ter. 3
|
less than 2 W
|
· Lead interruption
from: wiring harness plug X 9 Ter. 4
to: instrument wiring harness plug X 21 Ter. 3
|
|
|
· Disconnect plug from
Dual-Info-Display X 20
· Disconnect plug from
Multi-Info-Display X 20
· Disconnect plug from
radio X 69
· Using multimeter, measure
resistance:
from: wiring harness plug X 9 Ter. 4
to: plug X 20 Ter. 20
|
less than 2 W
|
· Lead interruption
from: wiring harness plug X 9 Ter. 4
to: DID/TID wiring harness plug X 20 Ter.20
|
|
|
· Using multimeter, measure
voltage:
from: wiring harness plug X 9 Ter. 4
to: radio plug X 69 Ter. 5
|
less than 2 W
|
· Lead interruption
from: wiring harness plug X 9 Ter. 4
to: radio plug X 69 Ter. 5
|
|
|
· Using multimeter, measure
voltage:
from: wiring harness plug X 9 Ter. 4
to: ground
|
greater than
22 kW
|
· Short circuit in wiring
harness to ground
from: wiring harness plug X 9 Ter. 4
to: wiring harness plug X 20 Ter. 20
or
from: wiring harness plug X 9 Ter. 4
to: wiring harness plug X 69 Ter. 5
|
|
|
· Test drive:
Drive
vehicle at approx. 30 km/h (18 mph)
|
Speed
displayed in
instrument:
approx. 30
km/h (18 mph)
TECH 1
display:
approx. 30
km/h (18 mph)
|
· Instrument defective
|
|
|
|
|
|
|
|
|
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|
