Test Point 16 - Selector Lever Switch (For Starting)
TEST POINT 16 - Selector lever switch/transmission - Fault code 38Possible Causes, Elimination, Remarks
Tiptronic warning lamp comes on, transmission is in emergency mode.
Specification: Engine may be started in P or N positions only
Actual status: Engine may also be started in other selector lever positions except P and N
Possible faults: Open circuit, short to ground, short to positive
Start possible, except P and N
1) Check adjustment of bowden cable to position switch.
- If required, run electrical test as described under Test point 14, item 4
- No start possible?
2) Pull off start relay R 61 in Central Electrical System
- Ground must be present at relay base terminal 85 when the selector lever is set to P or N.
- Ground present: Check start relay or ignition lock and related wiring
- No ground: Check position switch and wiring to start relay
3) Check position switch as described under Test point 14, item 4
- Position switch o.k.
Check continuity:
a) Position switch pin 6 to Central Electrical System (start relay).
b) Junction 40 pin 10 to DME connector pin 42
- Wiring o.k. Transmission-based starting requirements are met.