| Test | TECH 1 | Notes | Nominal Values | Possible |
|---|---|---|---|---|
| Step | Display | Trouble | ||
| No. | Codes | |||
| 04 | TRANSM. CODING | Ignition ON | ||
| MT vehicles | MT 5 V | - | ||
| AT vehicles | AT 0 V |
Before trouble-shooting, it should be established whether the exhaust coding is correct for the relevant transmission type.
A more detailed explanation can be found in section 5.2.3.
Trouble-shooting: Nominal Value: Cause of Fault:
(If nominal value is not attained)
MT vehicles
· Remove control unit plug · Incorrect wiring harness
cable cover · Lead interruption between control
unit Ter. 42 and ground
· Measure voltage · Control unit defective
between Ter. 21 and Ter. 42
against ground Ter. 14
using multimeter
Ignition ON Ter. 42 occupied, 0 V
Ter. 21 unoccupied, 5 V
AT vehicles
· Remove control unit plug
cable cover
· Measure voltage Ter. 21 occupied, 0 V · Incorrect wiring harness
between Ter. 21 and Ter. 42 · Lead interruption between control
against ground Ter. 14 Ter. 42 occupied, 0 V unit Ter. 21 and ground
using multimeter (to P/N switch Ter. H) · Control unit defective
Ignition ON