900 S Sedan L4-2290cc 2.3L DOHC (1994)
1
If only a single lamp is faulty, first check the bulb and its connector.
2
If none of the direction indicator lamps work, check the direction indicator lamp fuses in the main fuse box in the dashboard.
3
Plug in the Intelligent Saab Tester (ISAT) scan tool and select "READ FAULT CODES" from the menu. If any diagnostic trouble codes are
present, continue in Trouble Code Tables.
4
Check the operation of the direction indicators by selecting "ACT. OTHER FUNCT" from the menu and then "LH DIRECT. INDIC." or "RH
DIRECT. INDIC."
The direction indicators should now be activated when the ignition switch is "ON". If they work, continue with point 8.
5
Check the grounding of the direction indicator lamps for continuity/shorting by taking readings of the wiring as follows:
-
between pin 3 of the connector for the front direction indicator lamps and a good grounding point.
-
between one of the side direction indicator connectors (black lead) and a good grounding point.
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between pins 4 (left-hand) and 2 (right-hand) of the rear direction indicator lamp connectors and a good grounding point.
