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 |
|---|---|---|---|---|---|
| 29 | A/C INFORMAT. SW | Ignition ON |
AC switch ON
AC switch OFF
| INACTIVE 0V |
ACTIVE 12V
| INACTIVE 0V | - | D 5 / D 1 | |
|---|---|---|---|
| Trouble-shooting: | Nominal Value: | Cause of Fault: | |
| (If nominal value is not attained) |
· Ignition ON
· Disconnect plug from combi-pressure-switch S 20 of the AC system (4 pin)
· Measure voltage:
from: wiring harness plug S 20 Ter. 1
to: ground
· AC switch S 101 OFF
· AC switch S 101 ON
0 volts
| greater than 11 volts | · Lead interruption |
from: battery Ter. 30
to: AC switch S 101 Ter. 1
· AC switch S 101 defective
· Lead interruption
from: AC switch S 101
to: wiring harness plug X 7 Ter. C / X 6 Ter. 57
| · Lead interruption |
from: wiring harness plug X 7 Ter. C / X 6 Ter. 57
to: wiring harness plug S 20 Ter. 1
· Lead interruption
from: ignition lock Ter. 15 A
to: relay K 6
· Relay K 6 or fuse F 14 defective
· Ignition OFF
· Disconnect wiring harness plug X 8 / X 4
· Bridge X 8:
from: X 8 / X 4 Ter. 3 (at the control unit side)
to: battery voltage Ter. 30
· Ignition ON
ACTIVE 12V
| · Lead interruption |
from: control unit plug K 57, K 91 Ter. D 5
to: plug X 8 / X 4 Ter. 3
· Control unit defective
· Ignition OFF
· Connect wiring harness plug X 8 / X 4
· Bridge plug at combi-pressure-switch S 20
from: wiring harness plug S 20 Ter. 1
to: wiring harness plug S 20 Ter. 2
· Ignition ON
· AC switch ON
| · Lead interruption |
from: wiring harness plug S 20 Ter. 2
to: plug X 7 Ter. A / X 6 Ter. 54
· Lead interruption
from: plug X 7 Ter. A / X 6 Ter. 54
to: plug X 8 Ter. 3 / X 4 Ter. 3
| ACTIVE 12V |
Fan operating
| · Short circuit in the wiring harness |
from: wiring harness plug S 20 Ter. 2
to: ground
· Coil in relay K 26 (fan) defective Relay is causing short circuit to ground