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 MANUALSSAAB20059-3 LINEAR (9440) L4-2.0L TURBO (2.0T)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESONE OR MORE SYSTEMS CONNECTED TO THE I-BUS "MISSING" FROM THE BUS
2005 Saab 9-3 Linear (9440) L4-2.0L Turbo (2.0t)
One or More Systems Connected to the I-Bus "Missing" From the Bus
2005 Saab 9-3 Linear (9440) L4-2.0L Turbo (2.0t)SECTION One or More Systems Connected to the I-Bus "Missing" From the Bus
One Or More Systems Connected To The I-bus "MISSING" From The Bus.
Fault symptom
The diagnostic tool indicates that one or more systems connected to the I-bus is "MISSING" from the bus.
Diagnostic help
- Communication with CIM is necessary for Tech 2 to be able to communicate with all systems.
- The Diagnostic instrument main menu "All systems/Read configuration" shows a list of those systems with which the vehicle in question was equipped before the fault was detected.
- The current status of each system is shown to the right.
- "OK" if control module communicates correctly.
- "MISSING" if control module is not on the bus.
- "ADDED" if the control module has not yet been added.
- "NOT EQUIPPED" indicates that the control module is not fitted to the vehicle.
NOTE: applies before reset of bus configuration.
Functions in the diagnostic tool related to the fault
- Read/Reset Bus Configuration
- Read/Clear Bus Off Counter
- Response Test
Checking the wiring harness
IMPORTANT: Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
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.