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[Poul@]

Saab: Accessing Diagnostic Trouble Codes
Using Check Engine Lamp (1988–92 LH 2.4, 2.4.1 & 2.4.2)
Read the following procedure carefully before turning ignition On:

On 900 models, use a switched jumper lead tool No. 8393886, or equivalent, to ground No. 3 pin in three-pin test connector located on RH side of engine compartment.

On 9000 models, use a switched jumper lead to ground single pin socket on test box located on LH side of engine compartment.

On all models, turn ignition On. The Check Engine lamp will light.

Turn jumper lead switch on (grounding ECU pin 16). The Check Engine lamp will now go out.

Watch Check Engine lamp carefully. After approximately 2.5 seconds, it will flash briefly, signifying that first DTC will be displayed. Immediately turn jumper lead switch off as soon as lamp has flashed.

First error DTCs will now be displayed by a series of short lamp flashes. Error DTC starts and ends with a long flash. These long flashes are not part of DTC, but indicate beginning and end of DTC.

If test is run with engine off, DTC 12231 (no RPM signal) will be first DTC displayed. As soon as this DTC is displayed, turn ignition to Start position and hold it there until ECU acknowledges by flashing Check Engine lamp. The signal is being generated. At this point, let ignition key return to Run position so next DTC can be displayed.

With jumper lead switch set to off, same DTC will flash repeatedly. Any additional DTCs cannot be displayed until jumper lead switch has been operated as follows:

Turn jumper lead switch on.

After a short Check Engine lamp flash, turn jumper lead switch off. The next DTC (if any) will then be displayed.

Repeat this procedure to display a third stored DTC, if any. If a third fault has not been detected, or all faults have been corrected, system will indicate this by a continuous series of long Check Engine lamp flashes, or by displaying DTC 12444.

To display DTCs again, starting from first DTC, proceed as follows:

Turn jumper lead switch on.

After two short Check Engine lamp flashes, immediately turn jumper lead switch off. The DTC for the first fault will now be displayed.

Using LH System Tester (1985–92 2.2 LH & 1988–92 2.4 LH)
Clean battery terminals prior to connecting tester to ensure that the power supply lead clips make a satisfactory contact. Always connect power supply lead to the tester first and battery last.

Remove cover on LH side over space behind false bulkhead panel.

On models equipped with anti-lock brake system (ABS), remove ABS ECU and bracket.

On all models, connect test lead between vehicle ECU and wiring harness.

Use a couple of suitable ties to hold ECU and test connector together.

Connect power supply lead to tester and, to prevent it from being pinched, run it between door and body where there is a break in the seal.

Connect tester leads to battery, negative terminal first, then the positive terminal.

Select ‘‘TEST MODE’’ feature on LH system tester and read any DTCs stored in ECU memory.

Using ISAT System Tester (1990–93 LH 2.4 & 2.4.2, 1993–95 Trionic Engine Management System, 1994–95 Motronic 2.8.1 & 2.10.2, DI/APC & EZK Ignition Systems)
Connect SAAB ISAT tester, or equivalent, to the diagnostic connector located under the RH rear seat on 900 models, or under RH front seat on 9000 models, per manufacturer’s instructions. Never unplug connector from ECU or disconnect either of the battery leads before faults have been transferred to tester.

Using ISAT System Tester (1996–01 Motronic 4.1 & 5.2 & Trionic Engine Management Systems)
The new EPROM developed for the ISAT tool uses EPROM, a new command code system. It contains a system of menus in clear text, enabling the user to select the desired command directly on the keypad. The EPROM consists of eight main menus, each with sub-menus.

Connect a suitable ISAT tool to diagnostics socket pin 50, located under the LH side of the instrument panel. To access DTCs, select ‘‘READ FAULT CODES’’ from main menu.
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To clear DTCs from Check Engine lamp, proceed as follows:

Turn jumper lead switch on.

After three short Check Engine lamp flashes, turn jumper lead switch off.

The Check Engine lamp will now either flash in a continuous series of long flashes or display DTC 12444, indicating that contents of system’s memory have been erased.

After DTCs have been transferred from ECU memory to LH system tester, DTCs will be cleared from ECU memory.

To clear DTCs when using SAAB ISAT tester, or equivalent, follow tool manufacturer’s instructions.
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The DLC is located under lefthand side of instrument panel.
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Ignition System Diagnostic Trouble Code Identification Using ISAT Scan Tool


Code{1}
Circuit Or Condition

DI/APC IGNITION SYSTEM

1111
Acknowledgment = Satisfactory

29BO
Coding Faulty (Only Baseline Charging Pressure Available)

4261
Road Speed Signal Faulty

4360
CKP Sensor Signal Faulty

4460
Load Signal (Tq) Faulty

4461
Adoption Fault (Outside Limits)

4660
Pre-Ignition Fault

4661
KS Signal Faulty

4662
Pre-Ignition Synchronization Fault

4663
Combustion Signal Synchronization

5260
Throttle Potentiometer Signal Faulty

5360
Brake Signal Faulty

6391
Signal From Temperature Sensor Upstream Of Throttle Housing Faulty (M91)

0000
Internal Monitoring

0001
ECU Fault (ROM)

0002
ECU Fault (RAM)

EZK IGNITION SYSTEM

4469
Engine Load Signal From LH ECM Pin 8

4669
KS Circuit Fault Pins 12 & 13

4669
KS Component Fault Pins 12 & 13


{1}—Digits 2–5 shown. First number 2 indicates intermittent fault; 1 & 4 indicates hard fault.

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Using Check Engine Lamp (1988–92 LH 2.4, 2.4.1 & 2.4.2)


Code
Circuit Or Condition

00000
No Faults Detected Or End Of Fault Code Diagnosis

12111
Faulty Air/Fuel Mixture During Idling

12112
Faulty Air/Fuel Mixture During Running

12113
Idle Control Pulse Ratio Too Low

12114
Idle Control Pulse Ratio Too High

12211
Battery Voltage

12212
TP Switch Idle Contacts Shorted To Ground

12213
TP Switch WOT Contacts Shorted To Ground

12214
Faulty ECT Sensor

12221
MAF No Signal

12222
Faulty Idle Adjustment

12223
Air/Fuel Mixture Too Lean

12224
Air/Fuel Mixture Too Rich

12225
HO2S Signal Faulty

12231
No Ignition Signal

12232
Voltage For Memory

12233
Changes Made In EPROM, ROM Fault

12241
Faulty Injector

12242
MAF No Filament Burn-Off Function

12243
VSS No Signal

12244
No Drive Signal To Pin 30

12245
Faulty EGR

12251
Faulty TP Sensor

12252
Faulty EVAP Canister Purge Valve

12253
Pre-Ignition Signal Longer Than 20 Seconds

12254
No RPM Signal

22511
Load Signal To EZK Failure

22512
KS Faulty

22513
KS Adjustment Signal

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Using LH System Tester (1988–92 2.4 LH)


Code
Circuit Or Condition

E001
No Ignition Pulse

E002
TP Switch Idle Contacts Do Not Close

E003
TP Switch WOT Contacts Do Not Close

E004
No Battery Voltage To ECU Memory

E005
ECU Pin 5 Not Grounding

E006
MAF Sensor Not Grounding

E007
No Signal From MAF Sensor

E008
MAF No Filament Burn-Off Function

E009
Main Relay No Power Supply

E013
ECT Sensor Short Circuit Or No Signal

E017
No Ground Connection

E020
Pump Relay Control Faulty

E021
Main Relay Control Faulty

System Relay Control Circuit Faulty

E024
Faulty HO2S Signal

E033
IAC Valve No Signal From Pin 33

E035
No Power From Distributor Terminal +15

E101
Starter Motor Revs Too Low

E102
TP Switch Idle Contacts Do Not Open

TP Switch WOT Contacts Do Not Open

E107
Low Signal From MAF Sensor

E108
MAF Sensor Filament Burn-Off Function On Constantly

E109
Main Relay Power Supply Too Low

E207
High Signal From MAF Sensor

E218
Continuous Pulse To Injectors

E328
Pre-Ignition Signal Constantly Connected To Ground


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[Saab-daniel]

kraft helvede det var meget info
Daniel.