Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Alfa Romeo 159 Factory Service Manual (2005-2011)23 · Fault diagnosis
23 · Diagnostics

Tilt sensor alarm not working

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Alarm › Tilt sensor alarm not working
Fault diagnosisTilt sensor alarm not working

TILT SENSOR ALARM NOT WORKING

1.9 JTS, 2.2 JTS, 3.2 JTS, 1.9 JTD 8V, 1.9 JTD 16V, 2.4 JTD 20V

The anti-tilt sensor is located in the courtesy light module and is connected to the Body Computer by means of the dialogue line known as the A-BUS. The tilt sensor is operated and controlled by the Body Computer Node via a series of encrypted messages and can be excluded by the customer using the special button. If there is a failure the Body Computer Node detects and memorizes the causes of the malfunction

Results of the tests
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation

Connect the diagnostic equipment to the diagnostic socket and check the following at the Body Computer Node in parameters ambient:

. the presence of the tilt sensor in the errors ambient:

. that there are no problems relating to the tilt sensor

Move on to Step 2Tilt sensor excluded manuallySwitch on tilt sensor
Tilt sensor not presentCheck the conformity of the vehicle
Presence of faultsProceed as instructed by the diagnostic tester
2TILT MODULE POWER SUPPLY CHECKAll OKProblems encounteredOperation

Check that the anti-tilt module is correctly supplied

See Test 5580EC ULTRASOUND/ANTI-LIFT MODULE CHECK

Move on to Step 3Supply not correctRestore correct power supply
3CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation

Connect the diagnostic equipment to the diagnostic socket and check the following at the Body Computer Node. In active diagnosis:

. the operation of the tilt module

. the condition of the A-Bus serial line

Move on to Step 4A-BUS serial line interruption

Renew serial line

See E7015 ALARM

Anti-tilt module defective

Replace the courtesy light module with built-in tilt sensor

Op. 5580E50 ANTITHEFT DEVICE VOLUMETRIC SENSOR R R FOLLOWING ELECTRICAL CIRCUIT CHECK

4CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentFault persistsBody Computer defective

Replace Body Computer

Op. 5505A32 BODY COMPUTER - R.R

Parts & tools for this job For 2005 Alfa Romeo 159

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