Direction Indicators

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.
- between pins 4 (left-hand) and 2 (right-hand) of the rear direction indicator lamp connectors and a good grounding point.







6 Activate the direction indicator switch and check the power supply to the direction indicator lamps by taking readings as follows:
- between pin 2 of the connector for the front direction indicator lamps and a good grounding point.
- between the left-hand side direction indicator connector (yellow/black lead) and a good grounding point.
between the right-hand side direction indicator connector (green/black lead) and a good grounding point.
- between pins 2 (left-hand) and 4 (right-hand) of the rear direction indicator lamp connectors and a good grounding point.
The voltage readings should change between 0 V and 12 V.
7 If they do not, check the wiring for continuity/ shorting as follows between Integrated Central Electronics (ICE) module connector pins 1 (left-hand) and 48 (right-hand) and:
- pin 2 of the connector for the front direction indicator lamps.
- the connector for the side direction indicators (yellow/black (LH) and green/black (RH) leads).
- pins 2 (left-hand) and 4 (right-hand) of the connector for the rear direction indicator lamps.







8 Check the power supply to the direction indicator switch by taking a voltmeter reading between pin 3 of the switch connector and a good grounding point.
If no voltage reading is obtained, check the lead between fuse 33 and the switch.
9 If a voltage reading is obtained, check the direction indicator switch by connecting a jumper lead between pins 2 and 3 of the connector for the left-hand direction indicators and between pins 3 and 4 for the right-hand direction indicators.
If the direction indicators work when the pins are connected by jumper leads, the fault is probably in the direction indicator switch. Install a new switch.
10 If they do not work, check the leads for continuity/shorting by taking resistance readings as follows:
- across pin 18 of the ICE control module connector and pin 4 of the direction indicator switch connector.
- across pin 19 of the ICE control module connector and pin 2 of the direction indicator switch connector.
11 Continue fault diagnosis as described on "Before Changing an Electronic Control Module".