SAAB WIS ONLINE

Diagnosis

Diagnosis

When carrying out fault diagnosis, use is made of the Cruise Control system's switches as well as the clutch and brake pedals. On cars with automatic transmission, use is made of the Cruise Control system's switches, the brake pedal and selector lever.

Start fault diagnosis by checking:


1. The fuses.

2. +54 power supply.

3. Grounding.

4. The pins of the male control module connector for possible slide-out.

Fault diagnosis is carried out in the diagnostics mode. To enter the diagnostics mode, see the table below.

To leave the diagnostics mode, increase speed to more than 32 km/h (20 mph) or switch off the ignition. If you happen to make a mistake while in the diagnostics mode, you will be returned automatically to point 5 and will have to start afresh from there.




Action

CRUISE lamp

Item checked

1

Engine switched off and handbrake applied.





2

Automatic transmission: selector lever in position N (P, R).

Manual gearbox: clutch pedal depressed.





3

Move the switch to the TIP position and hold it there while the engine starts.







The CRUISE lamp should light up to confirm that you are in diagnostics mode.

Lights up

Remains out



4

Release the TIP button.

Goes out

Remains on

TIP function

5

Press the SET button.

Lights up

Remains out

SET function



Release the SET button.

Goes out

Remains on

SET function

7

Move the switch to the RES/ position.

Lights up

Remains out

RESUME function

8

Release RES/

Goes out

Remains on

RESUME function

9

Move the switch of the ON/OFF position.

Lights up

Remains out

ON/OFF function

10

Release ON/OFF

Goes out

Remains on

ON/OFF function

11

Automatic transmission: shift to D (3,2,1).

Manual gearbox: release the clutch pedal.

Lights up

Remains out

Automatic transmission:

Selector lever position sensor

Manual gearbox:

Clutch pedal switch

12

Depress the brake pedal.

Goes out

Remains on

Brake pedal switch

Automatic transmission:

Manual gearbox

13

Release the brake pedal.

Lights up

Remains out

Brake pedal switch

Automatic transmission:

Manual gearbox

14

Automatic transmission: shift to N (P, R).

Manual gearbox: depress the clutch pedal.

Goes out

Remains on

Automatic transmission:

Selector lever position sensor

Manual gearbox:

Clutch pedal switch

15

Depress the brake pedal and keep it depressed for about five seconds.

After about five seconds

Lights up

Remains out

Goes out

Remains on



Brake lights switch



Control module

16

Release the brake pedal.

Slight increase in engine idling speed.

No increase in engine idling speed.

Stepping motor/cable

17

Drive off slowly.

Lamp flashes in time with the speed.

Lamp does not flash.

Speed signal