9-5 Linear (9600) L4-2.3L Turbo (2.3t) (2004)
Horn Failure/Steering Wheel Controls Partly Inoperative
Fault symptom
Horn does not work but no DTC generated.
Not all steering wheel controls work, no DTC.
Diagnostic help
The horn buttons can be read with the diagnostic tool.
The horn outputs can be activated with 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. Check switches, connectors and
crimp connections for oxidation, withdrawn pins and pin clamping force.
Incorrect Indication of "Low Coolant Level. Filling Required"
Incorrect Indication Of "Low Coolant Level. Filling Required"
Fault symptoms
The SID gives a warning of low coolant level despite correct level or does not give a warning despite low level.
Diagnostic help
The coolant level sensor can be read using the diagnostics tool.
The message COOLANT LEVEL LOW can be activated with the diagnostics tool.
Check the wiring harness
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Check switches, connectors and
crimp connections for oxidation, withdrawn pins and pin clamping force.
Incorrect Indication of "Low Washer Fluid Level. Filling Required"
Incorrect Indication Of "Low Washer Fluid Level. Filling Required"