Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSAAB1995900 SE, 4D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESINTEGRATED CENTRAL ELECTRONICS (ICE)SELF-DIAGNOSTICSEXPLANATIONS OF ISAT COMMANDS
1995 Saab 900 SE, 4D Hatchback, Automatic
Explanations Of ISAT Commands
1995 Saab 900 SE, 4D Hatchback, AutomaticSECTION Explanations Of ISAT Commands
READ SWITCHES
| ISAT Commands | Function |
|---|---|
| LIGHTS SWITCH POS0/POS1/POS2 | Shows position of light switch. |
| PARKING LIGHTS ON/OFF | Shows status of parking lights. |
| EXTRA FOG ON/OFF | Shows position of switch for extra fog lights. |
| HAZARD FLASHERS ON/OFF | Shows position of switch for hazard flashers. |
| REAR SEAT HEATER ON/OFF | Shows position of switch for rear seat heater. |
| REAR WINDOW HEATER ON/OFF | Shows position of switch for rear window heater (only applies to cars without A/C). |
| INTERM.REARW.WIPER ON/OFF | Shows position of switch for intermittent rear window wiper. |
| REAR WIN.WASH/WIPE ON/OFF | Shows position of switch for rear window wash/wipe. |
| DIPSWITCH HIGH/LOW BEAM | Shows position of dipswitch. |
| LH DIRECT.INDIC. ON/OFF | Shows position of direction indicator switch. |
| RH DIRECT.INDIC. ON/OFF | Shows position of direction indicator switch. |
| INTERM.WINDSCR.WIPR ON/OFF | Shows position of windscreen wiper switch. |
| WINDSCR. WASH/WIPE ON/OFF | Shows position of windscreen wash/wipe switch. |
OBTAIN READOUTS
| ISAT Text/Commands | Function |
|---|---|
| SEAT BELT SWITCH ON/OFF | Shows status of seat belt switch. |
| A/C ON/OFF | Shows status of A/C switch |
| PRESS. SWITCH 1 A/C OPEN/CLOSED | Shows status of pressure switch 1. |
| PRESS. SWITCH 2 A/C OPEN/CLOSED | Shows status of pressure switch 2. |
| DRIVER DOOR OPEN/CLOSED | Shows status of driver's door. |
| PASSENGER DOORS OPEN/CLOSED | Shows status of passenger doors' switches. |
| BRAKE LIGHT SWITCH ON/OFF | Shows status of brake light switch. |
| HIGH-L. BRAKE LIGHT CURRENT/NO CURRENT | Shows status of high-level brake light. |
| LH, RH BRAKE LIGHT CURRENT/NO CURRENT | Shows status of brake lights (left & right). |
| LH PARKING LIGHTS CURRENT/NO CURRENT | Shows status of rear left parking light. |
| RH PARKING LIGHT CURRENT/NO CURRENT | Shows status of rear right parking light. |
| COOLANT TEMP.XXX C | Shows coolant temperature (-40 to +215°C). |
| BATTERY VOLTAGE XX.X VOLT | Shows battery voltage. |
ACTIVE RELAY
| ISAT Text/Commands | Function |
|---|---|
| RADIATOR FAN, LOW ON/OFF | Activates relay for radiator fan low speed. |
| RADIATOR FAN, HIGH ON/OFF | Activates relay for radiator fan high speed. |
| REAR WINDOW WIPER ON/OFF | Activates relay for rear window wiper. |
| WINDSCREEN WIPER ON/OFF | Activates relay for windscreen wiper. |
| REAR WINDOW HEATER ON/OFF | Activates relay for rear window heater. |
| POWER SEATS ON/OFF | Activates relay in driver's seat. |
| REAR SEAT HEATER ON/OFF | Activates relay for rear seat heater. |
| HIGH BEAM ON/OFF | Activates dipswitch relay. |
| HEADLAMPS ON/OFF | Activates relay for headlamps. |
| EXTRA FOR ON/OFF | Activates relay for extra fog lights. |
ACT INSTR FUNCT
| ISAT Text/Commands | Function |
|---|---|
| ACOUSTIC REMINDER ON/OFF | Activates sound (SOUND REMIND) in Saab Information Display (SID) module. |
| DOOR INDIC. LAMP ON/OFF | Activates indicator lamp "Door open" in main instrument. |
| REAR LIGHT FAILURE ON/OFF | Activates message in Saab Information Display (SID) module. |
| BRAKE LIGHT FAILURE ON/OFF | Activates message in Saab Information Display (SID) module. |
| TEST BRAKE LIGHT ON/OFF | Activates message in Saab Information Display (SID) module. |
| Saab Information Display (SID) OUTPUT ON/OFF | Causes output to Saab Information Display (SID) module low (0 V) and high (12 V) respectively. |
| SIM.COOL.TEMP.2 ON/OFF | Activates instrument needle of temperature gauge in main instrument 2. |
| SIM.COOL.TEMP.1 ON/OFF | Activates instrument needle of temperature gauge in main instrument 1. |
| TEMP.GAUGE.OUT.2 ON/OFF | Causes output to main instrument 2 low (0 V) and high (12 V) respectively. |
| TEMPGAUGE.OUT.1 ON/OFF | Causes output to main instrument 1 low (0 V) and high (12 V) respectively. |
ACT OTHER FUNCT
| ISAT Text/Commands | Function |
|---|---|
| LH DIRECT.INDIC. | Activates direction indicators. |
| RH DIRECT.INDIC. | Activates right direction indicator. |
| INTERIOR LIGHTING | Activates interior lighting. |
| S-BELT WARN.LAMP | Activates seat belt warning lamp in facia. |
| READING LAMPS | Activates reading lamps in ceiling under sun visors when switch is ON. |
| IDLING INCREASE | Sends signal to increase idling speed to MOTRONIC M2.10.2. |
| A/C | Sends A/C signal to engine electronic control system. |
SYSTEM INFORMATION
| ISAT Text/Commands | Function |
|---|---|
| DATE OF MANUFACT | Shows manufacturing date of ICE electronic control module. |
| SERIAL NUMBER | Shows serial number of ICE electronic control module. |
| HARDWARE VERSION | Shows number of ICE electronic control module's hardware version. |
| SOFTWARE VERSION | Shows number of ICE electronic control module's software version. |
| SAAB PART NUMBER | Shows ICE electronic control module's part number. |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.