BMW 3231 1994- Manuals

COMPONENTS CONTROL MODULE: • Located behind the left side rear seat interiorquarter trim panel (1). • All relays and operating electronics are installedin the module. The control module is fully diag-nosible with the DIS or MoDiC. TOP SWITCH: • The top switch is positioned inthe center console. • Th...

Convertible Tops - 7 MOTORS: • Top drive motor (A) with gear assembly and position micro switches (S1 & S2). The topdrive motor is located under the top storage compartment on the left side of the trunk. • Top storage cover motor (B) with drive linkage and an integrated hall sensor. The covermot...

Convertible Tops - 10 S5 - Identified as Trunk Lid Microswitch in the ETM (Not Adjustable) • Located on Trunk Lock. Prevents convertible top operation when trunk is open. • S5 is also used on fully manual top. It provides a ground for the convertible top stor-age lid lock motor. This is a unique com...

OPERATION The following prerequisites must be met for the top to function: Trunk Lid Closed - Electrical interlock of the trunk and top. Due to the design of the top storage cover and trunk lid, damage to the cover or lid would occur if both were open atthe same time. Ignition key switched on KL R ,...

Convertible Tops - 13 TENSION BAR RAISED At the same time the windows are lowering, the top drive motor is switched on and the ten-sion bar is raised to a vertical position. The drive lever of the top linkage rotates counterclockwise to push the tension bar to a raised position. The control module r...

TOP ASSEMBLY LOWERED The top motor turns clockwise immediately opening S1 & S2. It pulls the top into the stor-age compartment. The tension bar drive linkage is mechanically released from the top driveas the motor continues to run. Once the top is completely lowered microswitch S3 closessignalli...

Convertible Tops - 15 E36 Semi Automatic Convertible Top Micro-Switch Logic Chart Top Position S1 S2S3 S4 S5 S6 (GM) Hall Sensor Top Up and locked Hi Hi Hi Hi Hi Hi Not active Top Unlocked and pushed past tension point Hi Hi Hi Lo Hi Hi Not active Tension Bow Raising Lo Hi Hi Lo Hi Hi Not active Ten...

Convertible Tops - 16 RAISING THE TOP The procedure for raising the top follows the same pattern as lowering. Press and hold the top switch. • The windows are automatically lowered. • The top storage cover opens • The top is raised out of the storage compartment • The top storage cover is closed and...

Convertible Tops - 17 EM TOP EMERGENCY OPERATION In the event of electrical failure, the top can be raised manually. The procedure is as fol-lows: • Pull the release lever located under the left rearseat cushion as shown. • Both motors are disconnected from the geardrives. • The top storage cover is...

RE-CONNECTING DRIVE MOTORS Due to the interlock of the trunk lid an unlocked top storage cover, the following proceduremust be followed to reconnect the top drive motors, to restore electrical operation: • Lower all the side windows with the central switch • Unlock the top from the windshield frame,...

Convertible Tops - 19 EM TOP INITIALIZATION Initialization of the system is required for the CVM to learn the end limits of the top storagecover. The CVM counts the pulses from the integrated hall sensor in the cover motor todetermine the cover position. An initialization run occurs automatically af...

Convertible Tops - 20 CONTROL MODULE DIAGNOSIS/TROUBLESHOOTING • Faults that occur during opera-tion of the top are stored in theCVM. • They are accessed with the DISTester or MoDiC. • The table reflects the possiblefault codes stored in the CVM. • Additionally, the diagnosticrequests (status) and c...

CONVERTIBLE TOP STORAGE LID POSITION HALL SENSOR TESTS Before testing always verify pin numbers andwire colors from the appropriate ETM. DC Voltage Test Procedures: • At X13145 disconnect and access ground (pin 6) and the hall sensor supply voltage (pin 3) = battery voltage. • Re-connect plug and ch...

Convertible Tops - 23 E36 CONVERTIBLE TOP ADJUSTMENTS NOTE: All mechanical adjustments are critical for synchronous top operation. The following adjustments are possible on E36 convertibles. The Repair Manual section ofTIS provides system component R&R and adjustment procedures. The following Re...

Group 54 90.. includes trou-bleshooting charts for the Semiand Fully Automatic Systems withlinks to repair procedures. Group 54 90.. also includes amicro switch logic table for diag-nosis. Convertible Tops - 28

E36 CONVERTIBLE SPECIFIC SI BULLETINS Refer to the following list of Service Information bulletins when servicing an E36 convertible.Always check the most up-to-date SI’s and recent DCS messages for current service infor-mation. • E-36 CONVERTIBLE TOP HEADLINER SAGS. Repair kit P/N 54 31 8 227 354. ...