Filed Under (Chevrolet) by admin on 21-04-2011
Callout Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section. Caution: Refer to SIR Caution in the Preface section. Preliminary Procedure Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling . Retainer Procedure 1 On the back side of the steering wheel, there are 2 access holes. Using a 3-4 mm T handle allen wrench , insert in a cross car (Horizontally) direction and slightly outboard (handle towards I/P) push in 40mm (1 1/2in) to engage release spring. Component Name Steering Wheel Inflatable Restraint Module Procedure 1. Release the connector position assurance (CPA) retainer. 2. Disconnect the electrical connectors. 3. Fully deploy the module before disposal. If the module was replaced under warranty, fully deploy and dispose of the module after the required retention period. Refer to Inflator Module Handling and Scrapping .
Filed Under (Chevrolet) by admin on 15-04-2011
Circuit Description The inflatable restraint steering wheel module deployment loop consists of a steering wheel module, steering wheel module coil, steering wheel module high control, and steering wheel module low control circuits. Shorting bars are used on the steering wheel module connector as well as the steering wheel module coil connector which will short together the steering wheel module high and steering wheel module low control circuits when the connector is disconnected. This will help to prevent unwanted deployment of the inflator module during servicing. When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a DTC will be stored in memory. DTC Descriptors This diagnostic procedure supports the following DTCs: • DTC B0022 Driver Frontal Deployment Loop Resistance Low • DTC B0024 Driver Frontal Deployment Loop Voltage Out of Range • DTC B0026 Driver Frontal Deployment Loop Open Conditions for Running the DTC Ignition 1 voltage is within the normal operating voltage range. Conditions for Setting the DTC • DTC B0022 will set when the steering wheel module deployment loop resistance is less than 1.3 ohms for 500 milliseconds. • DTC B0024 will set when one of the following conditions occurs: – The SDM detects the voltage at steering wheel module high control is shorted to ground or voltage for 500 milliseconds. – The SDM detects the voltage at steering wheel module high control is less than 2.4 volts and steering wheel module deployment loop resistance is less than 6 ohms for 500 milliseconds. • DTC B0026 will set when one of the following conditions occurs: – The SDM detects the steering wheel module deployment loop resistance is greater than 4.8 ohms for 500 milliseconds. – The SDM detects the voltage at steering wheel module high control is less than 2.4 volts and steering wheel module deployment loop resistance is 6 ohms or greater for 500 milliseconds. Action Taken When the DTC Sets The SDM commands the AIR BAG indicator ON via class 2 serial data.
Filed Under (Ford) by admin on 03-04-2011
1. Disconnect battery ground cable (14301) . Refer to Section 14-01. 2. Remove steering wheel (3600) as described. 3. Remove steering column from vehicle as described. 4. Remove steering column lower yoke (3N725) , steering column upper bearing spring (3520) , suspension height sensor control ring (3C131) and steering column bearing tolerance ring (3L539) . Lower Steering Column Assembly 5. Remove turn indicator cancel cam (13318) by pushing up with flat-bladed screwdriver. Note direction of flush surface. 6. Remove ignition switch (11572) . 7. Remove bearing retainer (3C610) and steering column upper bearing spring . 8. Remove steel steering column bearing tolerance ring and steering column bearing sleeve (3518) . 9. Remove plastic bearing retainer from ignition switch lock cylinder bore. 10. Remove metal steering column lock housing bearing (3E700) from ignition switch lock cylinder bore. 11. Note position of steering column lock gear (3E717) to actuator lock. Remove steering column lock gear . 12. Remove two pivot bolts. Use caution as steering column position spring (3D655) will release when bolts are removed. Remove steering column lock cylinder housing (3511) . 13. Remove steering column shaft assembly from steering column. 14. Remove steering column lock lever actuator (3E715) and steering actuator housing (3F723) . 15. Remove lower steering column bearing (3517) and steering column lower bearing retainer (3D681) . 16. Remove tilt position lever pivot pin using a drift. Remove RH steering column locking lever (3B661) (RH and LH), steering column lock left hand lever (3D653) and steering column locking lever springs (3B664) . Assembly 1. Install steering column shaft assembly into steering actuator housing . 2. Install lower steering column bearing and steering column mounting bracket (3E660) . Tighten screws to 7-11 Nm (62-97 lb-in). 3. Install suspension height sensor control ring , steering column bearing tolerance ring , steering column upper bearing spring and steering column lower yoke to steering column shaft assembly. Tighten pinch bolt to 25-35 Nm (19-25 lb-ft). Item 1 2 3 4 5 A 4. Position actuator cam in steering column lock cylinder housing and install cam pivot pin with small hammer. Tap pin in until flush with steering column lock cylinder housing . 5. Install one steering column locking lever spring and RH steering column locking lever into steering actuator housing using a drift to hold in place. 6. Install the LH steering column locking lever spring and steering column lock left hand lever with steering column lock actuator lever pin (3F530) . Tap steering column lock actuator lever pin into place while driving out drift. Part Number N803942 3L539 3C131 3520 3N725 — Description Pinch Bolt Steering Column Bearing Tolerance Ring Suspension Height Sensor Control Ring Steering Column Upper Bearing Spring Steering Column Lower Yoke Tighten to 25-35 Nm (19-25 Lb-Ft)
Filed Under (volkswagen) by admin on 24-03-2011
WARNING! Disconnect battery Ground (GND) strap before working on electrical system, observing all cautions => Repair Manual; Electrical; Repair Group 27, Battery, disconnecting and reconnecting. Removing Note: Before disconnecting battery Ground (GND) strap obtain security code for radio with anti- theft coding. Remove driver’s airbag unit => page 69-50. Remove steering wheel => page 69-61. Note: For vehicles with steering angle sensor -G85- observe: => Suspension, Wheels, Steering; Repair Group 48 – Steering; Steering column, removing and installing; Sequence for vehicles with steering angle sensor -G85-. For vehicles without steering angle sensor -G85- observe: => Suspension, Wheels, Steering; Repair Group 48 – Steering; Steering column, removing and installing; For vehicles without steering angle sensor -G85-. Remove two screws -arrows-. Remove steering column switch upper trim -1-. Remove three screws -arrows-. Release steering wheel height adjustment -2-. Remove steering column switch lower trim-1-. Note: Handle for height adjustment can be removed (two screws) to ease removal of lower trim. Remove Hex socket (Allen key) head bolt -1-. Disconnect connectors -arrows- from steering column switches. Remove steering column switch. Remove screws -1-. Remove driver’s side footwell cover -2- from retainers -3-.
Filed Under (Audi) by admin on 23-03-2011
Removing Note: Do not disassemble instrument cluster. Instrument clusters contain no field serviceable components. Should malfunctions occur, replace complete instrument cluster. If instrument cluster is to be replaced, connect VAS 5051/5052 and initiate OBD program option “Instrument cluster, replacing” On Board Diagnostic (OBD), Function CAUTION! Switch off all electrical consumers. Switch ignition off and remove ignition key. Note: Steering wheel does not need to be removed in order to remove instrument cluster. Pull steering wheel with adjusting mechanism fully out and move it downward. Pull off gap cover – 1 – in direction of – arrow – . Place gap cover on top trim cover for steering column. Remove screws – arrows – . Pull out instrument cluster until contacts steering wheel. Reach behind instrument cluster to access electrical connections. On electrical connection, depress retainer – 1 – and release connector lock in direction of – arrow – . Disconnect electrical connection from instrument cluster. Remove instrument cluster towards drivers side between steering wheel and instrument panel. Installing Install in reverse order of removal. Tightening Torque Component – Fastener Instrument cluster to instrument panel – screw Nm 3.5