Multec- S X 14 XE / X 16 XE (L) F0:DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 10 | A/C LOAD SIGNAL | Engine running at idle speed, operating temperature | - | B5 | |
| AC switch ON | |||||
| INACTIVE 0V | |||||
| AC pressure higher than 11 bar | |||||
| ACTIVE 12V | |||||
| Vehicles without AC: | INACTIVE 0V | ||||
| Notes on Trouble-shooting: | Nominal Value: | Cause of fault: |
(If nominal value is not attained)
· Ignition OFF
· Disconnect wiring harness plug from:
S109 engine speed increase pressure switch
· Ignition ON
· Using multimeter, measure voltage
from: S109 engine speed increase pressure switch Ter. A (black cable)
| to: ground | higher than 11 V |
|---|---|
| · F17 fuse defective (Corsa- B, Tigra) |
· F20 fuse defective (Astra- F)
· Short circuit to ground or circuit interruption
from: S109 engine speed increase pressure switch Ter. A (black cable)
to: S1 ignition lock Ter. 15
· Defect in air conditioning circuit (see Air Conditioning Checking Procedures)
· TECH 1 data list no. 10, A/C LOAD SIGNAL
· Bridge wiring harness plug
from: S109 engine speed increase pressure switch Ter. A (black cable)
| to: S109 engine speed increase pressure switch Ter. B (black/white cable) | INACTIVE 0V |
|---|---|
| · Short circuit to voltage |
from: S109 engine speed increase pressure switch Ter. B (black/white cable)
to: K57 wiring harness plug for engine control unit Ter. B5
· TECH 1 data list no. 10, A/C LOAD SIGNAL
| ACTIVE 12V |
|---|
| · Short circuit to ground or circuit interruption |
from: S109 engine speed increase pressure switch Ter. B (black/white cable)
to: K57 wiring harness plug for engine control unit Ter. B5
· K57 engine control unit defective.
| If nominal values are attained | · See Air Conditioning Checking Procedures, test step 16 |