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 MANUALSSAAB20049-5 LINEAR (9600) L4-2.3L TURBO (2.3T)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESSCAN TOOL SCREEN DOES NOT COME ALIVE WHEN ON BUTTON IS PRESSED
2004 Saab 9-5 Linear (9600) L4-2.3L Turbo (2.3t)
Scan Tool Screen Does Not Come Alive When ON Button Is Pressed
2004 Saab 9-5 Linear (9600) L4-2.3L Turbo (2.3t)SECTION Scan Tool Screen Does Not Come Alive When ON Button Is Pressed
Fault The Diagnostic Tool's Screen Does Not Come Alive When The ON Button Is Pressed.
Fault symptoms
The diagnostic tool's screen does not come alive when the ON button is pressed. No system can be contacted.
Condition
The following conditions are applicable:
^ Battery OK.
Diagnostic help
First check that no slide-out of the data link connector pins for current supply (+30 circuit) and ground has occurred. Then use a test lamp to check whether any lead and/or fuse supplying the data link connector with current is faulty.
Following this, check whether the diagnostic tool works on another car.
If no fault can be found, decide whether to repair or replace the diagnostic tool.
Checking the wiring harness
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostic tool during the test.
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.