Method For Version 3 (C)
Applies to:940, 1993
4-door models as from chassis No. 114465
5-door models as from chassis No. 066167
Note:
Unlike earlier models, the power seats in the above models can be operated with the ignition off.
Procedures in Part I are valid for cars built up to chassis numbers listed below. Procedures for Part II are valid for cars after these chassis numbers:
4 door models:
124126 Factory Code 0
123549 Factory Code 1
123609 Factory Code 3
122175 Factory Code A
5 door models:
073706 Factory Code 0
074106 Factory Code 1
074202 Factory Code 3
072508 Factory Code A
C1
- Switch off ignition.
C2
I. - Manual fault tracing/calibration: Connect auxiliary lead (alternative 1 or 2 as illustrated) between connector at front of seat to be tested and test lead on DLC A.
- Fault tracing/calibration using VST with OBD System Memory Cassette: Connect auxiliary lead to terminal 6 on the VST adapter cable.
II. - Manual fault tracing/calibration: Connect test lead from DLC A to socket 6 on DLC B.
- Fault tracing/calibration using VST with OBD System Memory Cassette: Connect instrument to DLC B.
C3
- Remove fuse No. 3
Fusebox is located behind ashtray in center console, in front of gear lever.
C4
Ignition must be off for at least 5 seconds before performing this step.
- Press and hold any button on control panel of seat to be tested while switching ignition on. Keep button depressed for at least 1 second after turning on ignition.
C5
- Reinstall fuse No. 3.
Diagnostic system must now be activated within one minute, i.e., test button must be pressed once to select DTM 1 (self-diagnostics) or four times to select DTM 4 (calibration).
Control module will exit diagnostic function after approx. 1 minute if no activity takes place between module and DLC. Module will also exit diagnostic function if ignition is switched off for at least 5 seconds. Seat cannot be operated either with control buttons or memory buttons while using diagnostic system.
Codes for DTM 1 are listed and explained in the table on page 9 of the SM; use of DTM 4 (calibration) is described on SM page 7.