Multec-M (14 SE / C 14 SE / C 16 SE) F0:DATA LIST
| 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 |