MagnusB

The rear decklid doesn't close on my cab and I have a red light indicating top not closed properly.
I can hear an engine whine like it's trying to close it but nothing happens.
The top itself is closed properly.

Ideas?

pl

c&p from renntech.org.
good luck!
RicksCarrera
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Find Member's Registry Entries Sep 15 2006, 05:35 PM Post #7


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Group: Contributing Members
Posts: 23
Joined: 9-January 05
Member No.: 4,092



Hi All
Below is some of what the shop manual has to say on the convertible top function. The actual trouble shooting is quite specialized because special tools are required. It sounds like you may have a faulty micro-switch
I am having a problem with my top also, it is in the convertible top fully open (or down) position. When I actuate the top switch I get the click clack sound from the control module but no action. Recently I topped up the hyd fluid (as per Izzy's DIY)to correct an intermitant cab top function and the top worked perfect.

I have two questions for those who have moved the top by manual method;
If I put the top up by the emergency (manual) method, will the top need to be calibrated?
Does anyone know if the durametric code reading software can read and clear top function codes?

This is alittle long and no diagrams


911 Carrera (996) Convertible-top diagnosis
General information
Diagnosis
The monitoring of signals by the convertibletop
control module enables the system to
perform reliable, precise diagnosis. Further,
certain additional functions, such as e.g.
test of drive links and of input signals
can be activated using the Porsche
System Tester 2 and their
function checked.

General infonnation
Convertible-top control
Each single step of the opening/closing process
is only executed on condition that the preceding
step was performed correctly.
If a single step is not confirmed within a
given time, the actuation of the drive
motor is interrupted. The fault memory can be read out and
erased with the Porsche System
Tester 2. The diagnostic socket is
located below the knee guard
on the driver's side.
At the beginning of a process, the limit switch
or potentiometer values have a particular
configuration, which is examined
by the control module.
The control module monitors itself and
the connected components. The results
are read out via the diagnostic interface.
625_96
61 01 Diagnosis/troubleshooting, convertible top
Printed in Germany -II, 1998 99661Dl
61-D3Convertible-top diagnosis 911 Carrera (996)

Overview of convertible-top components
Rocker switch 1
2 Warning light
Micro-switch, latching hook (windscreen frame) 3
Micro-switch, convertible-top latch (convertible-top side) 4
Potentiometer I convertible-top interrogation 5
6 Control module
Micro-switch, convertible-top compartment lid (locked) 7
Potentiometer, convertible-top compartment lid interrogation 8
Micro-switch, left/right rear section flap up and down 9

The convertible top is actuated if:
Terminal 15 is connected via ignition.
The parking brake input is connected to ground (parking brake engaged),
No speedometer signals greater than 5 km/h (3 mph) are present.
Engine compartment lid is closed (input not at ground potential),
61 -D 7 61 01 Diagnosis/troubleshooting, convertible top
Printed in Germany -11, 1998 99661Dl
Fault memory
Overview of possible faults
1 Switch position implausible
2 Button short to ground
3 Convertible-top pot. fault
4 CTCL pot. fault
5 Timeout error
6 Calibration necessary
7 Supply voltage
8
8
61 -D 12 6101
99661Dl
Diagnosis/troubleshooting, convertible top
Printed in GenT1any -II, 1998Convertible-top diagnosis 911 Carrera (996)

Fault, Fault code Possible causes, elimination, notes
Test point 1
Switch position implausible
Fault code 01 This fault is only stored in the memory when an operation
has taken place
(button or comfort function with the key).
1. Check response of micro-switches of rear section flaps left and right.
A defective micro-switch must be replaced.
Refer to Servo No. 61 41 19
2. Check response of micro-switch in convertible-top latch.
If the micro-switch is defective, replace the convertible-top latch.
Test point 2
Button short to ground
Fault code 02 1. Check pin 1 to pin 4 for continuity (bitmap on "close" switch),
check button pin 2 to pin 4 for continuity
(bitmap on "open" switch).
2. Measure resistance of wires 1 and 2 to one another with
the ohmmeter. Display 1.8 -2.0 K .0.
. 6101
99661D14
Diagnosis/troubleshooting, convertible top
Printed in Germany -11, 1998
61 -D 14(;onvertible-top diagnosis 911 Carrera (996)
Fault Fault code Possible causes, elimination, notes OJ 0 , -.

Test point 3
Convertible-top pot. fault
Fault code 03 This fault is only stored in the memory if the voltage at the input
of the convertible-top potentiometer exceeds or falls below
the operating range.
1. Switch ignition off and remove ignition key. With test adapter 9619,
9636 and pin template 9636, measure the resistance of
the convertible-top potentiometer at row I, pins 12, 21
and 24 with the ohmmeter. If the display 00 .Q appears,
the convertible-top potentiometer must be replaced.
Refer to Servo No. 61 66 19
2. Switch on the ignition and measure at row 1, pins 12 and 21,
with the voltmeter; nominal value (display) 0.4 -4.4 volts.
If there is no voltage display, replace the control module.
3. Calibrate the convertible top

Test point 4
CTCL pot. fault
Fault code 04 This fault is only stored in the memory if the voltage at the input
of the convertible-top compartment lid potentiometer exceeds
or falls below the operating range.
1. Switch ignition off and remove ignition key. With test adapter
9619,9636 and pin template 9636, measure the resistance
of the convertible-top compartment lid potentiometer at row I,
pins I, 3 and 5 with the ohmmeter. If the display 00 .0. appears,
the potentiometer and drive motor must be replaced.
Refer to Servo No. 61 70 19
2. Switch on the ignition and measure at row 3, pins 1 and 3,
with the voltmeter; nominal value (display) 0.5 -4.4 volts.
If there is no voltage display, replace the control module.
3. Calibrate the convertible top
61 -D 15 61 01 Diagnosis/troubleshootin~~, convertible top
Printed in Germany -11, 1998 99661D14Convertible-top diagnosis 911 Carrera (996)
8
Fault, Fault code Possible causes, elimination, notes

Test point 5
Timeout error
Fault code 05 This fault is only stored in the memory if an electric motor is
actuated and does not reach the limit position within 6 seconds,
or the potentiometers of the convertible top and CTCL do not
show any change in voltage within 3 seconds.
To check the micro-switch input signals, select the input signals which
appear in the menu: Latch locked, Latch unlocked, Convertible top,
Convertible-top compartment lid side flaps, Latching hook. Actuate
the micro-switch manually (press it) to read the response in
the bitmap positions of the tester display.
-;~
0
192_98
If the convertible top is between "Convertible top closed" and
"Convertible top forward" and if the "Convertible top raised" input
is connected to ground (contact for micro-switch of convertible-top
latch does not lie against the top edge of the cowl panel and
does not switch), examine the tension of the convertible-top
covering using the left and right tension cables or, if necessary,
loosen by 1 or 2 turns so that the contact lies against the top
edge of the cowl panel and switches.
Diagnosis/troubleshooting, convertible top
Printed in Germany -11, 1998
6101
99661D14
61 -D 16911 Carrera (996) Convertible-top diagnosis
Fault, Fault code Possible causes, elimination, notes
193_98

If the convertible top is in the forward position (diagram) on closing,
check the response of the micro-switch -unlocked or not unlocked
(small diagram) -in the convertible-top latch.
If the micro-switch is defective, replace the convertible-top latch.
194_98
If the convertible top is in the rear position (diagram) on opening,
check the response of the micro-switch -unlocked or not unlocked
(small diagram) -in the convertible-top latch.
If the micro-switch is defective, replace the convertible-top latch.
61 -D 17 61 01 Diagnosis/troubleshooting, convertible top
Printed in Germany -II, 1998 99661D14Fault, Fault code Possible causes, elimination, notes
195_98

If the convertible top is in the centre front position (diagram) on closing,
check the response of the micro-switch -not locked or locked
(small diagram) -in the convertible-top latch.
If the micro-switch is defective, replace the convertible-top latch.
8
196_98
If the convertible top is in the centre rear position (diagram) on opening,
check the response of the micro-switch -not locked or locked
(small diagram) -in the convertible-top latch.
If the micro-switch is defective, replace the convertible-top latch.
61 -D 18 6101
99661D14
Diagnosis/troubleshooting, convertible top911 Carrera (996) Convertible-top diagnosis
197_98
If the convertible top is in the closed position (diagram) and the latching
hook has been actuated, check the response of the convertible top
(CTCl) micro-switch or adjust the Bowden cable of the central locking
hook in such a way that the micro-switch switches.
A defective micro-switch must be replaced.
Refer to Servo No. 61 81 19
If the convertible top remains in a position not described here:
6. Switch ignition off and remove ignition key. With test adapter
9619,9636 and pin template 9636, measure the resistance
of the convertible-top compartment lid potentiometer at row 3,
pins I, 3 and 5 with the ohmmeter. If the display 00 .0. appears
the potentiometer and drive motor must be replaced.
Refer to Servo No. 61 7019
7. Switch ignition off and remove ignition key. With test adapter
9619, 9636 and pin template 9636, measure the resistance
of the convertible-top potentiometer at row 1, pins 12, 21
and 24 with the ohmmeter. If the display 00 .Q appears,
the convertible-top potentiometer must be replaced.
Refer to Servo No. 61 66 19
61 01 Diagnosis/troubleshooting, convertible top
Printed in Germany -11, 1998 99661D14
61 -D 19
Printed inConvertible-top diagnosis 911 Carrera (996)

Test point 6
Calibration necessary
Fault code 06
This fault is stored in the memory after 1000 actuations or
if fault code 03, convertible-top pot. fault, or fault code 04,
CTCL pot. fault, is entered.
1. Read out and delete actuation counter 2.
2. A newly installed control module has not been calibrated.
3. Proceed as described in test points 3 or 4.
4. Calibrate the convertible top

Test point 7
Supply voltage
Fault code 07 1. Check the battery or alternator.
2. Inspect the plug connection on the control module for corrosion,
8
8
6101
99661D14
Diagnosis/troubleshooting, convertible top
Printed in Germany -II, 1998
61 -D 20 Germany -11, 1998

djantlive

are the two flaps on the side closed properly?

try closing with the key in the door. if that works, it could be a microswitch in the handbrake (you did pull the handbrake right?)

cycle the top up and down a few times to see if that helps. is the car level? is there enough hydrolic fluid (shouldn't matter though as the tonneau cover is electrical IIRC.)

pl

another thread worth reading, with pix.

http://www.renntech.org/forums/index...3&hl=top+close

pl

another one
and you should be able to sort it out by the pix.
http://www.renntech.org/forums/index...4&hl=top+close

pl

the last one.
http://www.renntech.org/forums/index...3&hl=top+close

good night.

MagnusB

I have now tried various methods but nothing helps.
This is what I know:
- The top goes up and down flawlessly
- The flaps work
- The deck lid moves when using the "manual" method
- When trying to close the deck lid via key or button the engine makes noise but nothing moves. It gives up after a couple of seconds.
- The deck lid lock doesn't move
- pressing the deck lid microswitch makes no difference (it seems)

The problem seems to be that the electrical motor doesn't move the decklid at all.

jugger911

I have seen several of these types of problems at my local dealership. The top will go up and down but the "flap" will not. I have heard the popping sound that comes with trying to close them as well. Hope it isn't going to be very much trouble. The vehicles that I have seen, were there for a couple of weeks at a time. Let us know how it turns out. This is one of the reasons I went from a Cab. to a Coupe...

MagnusB

Anybody knows where the microswitch for the Convertible Top Compartment Lid is located?