Multec - S (C 16 XE) F0:DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 23 | A / C INFORMAT. SW | Ignition ON | - | E 9 | |
| AC switch OFF | INACTIVE 0 V | ||||
| AC switch ON | ACTIVE 12 V | ||||
| Vehicle without AC | |||||
| INACTIVE 0 V | |||||
| Trouble - shooting: | Nominal Value: | Cause of Fault: |
(If nominal value is not attained)
· Ignition ON
Disconnect plug from combi - pressure switch S 20 of air conditioning (4 - pin)
· Measure voltage:
from: wiring harness plug Ter. 1
to: ground
| · Fuse F 7 defective. |
· Defect in circuit, AC relay K 6
· AC relay K 6 defective.
· Lead interruption
from: fuse F 7
| to: AC switch S 101 Ter. C |
· AC switch OFF
| · AC switch ON | less than 0.1 V |
|---|---|
| greater than 11 V | · AC switch S 101 defective |
· Lead interruption
from: AC switch S 101 Ter. C
to: combi - pressure switch S 20 Ter. 1
· Short circuit to ground
from: fuse F 7
to: combi - pressure switch S 20 Ter. 1
· Ignition OFF
· Disconnect wiring harness plug X 4
· Bridge plug X 4:
from: X 4 Ter. 3 (control unit side)
| to: battery voltage Ter. 30 | · Lead interruption |
from: control unit plug K 57 Ter. E 9
to: plug X 4 Ter. 3
· Short circuit to ground
| from: control unit plug K 57 Ter. E 9 | ||
|---|---|---|
| · Ignition ON | ACTIVE 12 V | to: plug X 4 Ter. 3 |
· Control unit defective
· Ignition OFF
· Connect wiring harness plug X 4
· Bridge plug at assy. combi - pressure switch S 20
from: plug for combi - pressure switch S 20 Ter. 1
to: plug for combi - pressure switch S 20 Ter. 2
· Ignition ON
| · AC switch S 101 ON | ACTIVE 12 V |
|---|---|
| Radiator fan M 4 operating | · Lead interruption |
from: pressure switch plug S 20 Ter. 2
to: plug X 4 Ter. 3
· Short circuit to ground
from: pressure switch plug S 20 Ter. 2
to: plug X 4 Ter. 3
· Fuse F 20 defective
· Check circuit for radiator fan M 4, fan relay K 26, fan relay K 52 and assy. combi - pressure switch S 20.3
(Ter, 3 + 4) acc. applicable Checking Procedures / Service Instructions
· Control unit defective