Reading Fault codes off 96 850!! - Page 2

Chris_Rogers · Mar 12th, 2007, 18:07

You must build the code reader circuit as described above.

ECC is on Pin 6

Read all the fault codes, if self adjustment of damper motors is required you should get fault code 5-1-1. If you have others you will need to fix these first.

Then use the procedure below:

SELF adjustment of damper motors 850 ECC

TEST MODE 4
1) Turn ignition on. Press button on code reader 4
times (for about one second each time). LED should illuminate.

2) Control codes must be entered one step at a time. LED should go off after each digit is entered. Entering each digit in a code must be made within 4 seconds, as failure to do so will abort input and TEST MODE 4 must be restarted.

Self-Adjustment Of Damper Motor Limit Positions
1) Turn ignition on. Place fan (blower motor) lever in manual
mode. Turn function selector to AUT (automatic). Ensure system is in
TEST MODE 4.
2) Enter control code 9-9-9 by pressing button on diagnostic
unit 9 times in quick succession. Enter each of the 9 series 3 times,
with a short pause in-between to allow LED to come on again. ECC
control module is now ready to adjust damper motor limit positions
automatically.
3) Wait about 10 seconds for fan to start. Turn ignition off
to exit TEST MODE 4. Turn ignition on. AC OFF and REC indicator on A/C
control panel should flash. Drive car for a few minutes at speeds
greater than 20 MPH.
4) Stop car and turn engine off, but leave ignition on for at
least 2 minutes to enable ECC control module to store all values.
Start TEST MODE 1 and record DTCs. If DTC 1-1-1 appears, selfadjustment
is complete. If DTC 5-1-1 appears, self-adjustment is not.

jxkeefe · Apr 16th, 2007, 18:12

Had time to research how the older Volvo diag system worked. Followed the directions supplied and had complete success.

Great Stuff!!!

Any thoughts on getting ABS codes? Perhaps I will need the scan tool? If I know what the codes mean and what the serial data stream looks like, perhaps I could cook up my own scan tool. Sounds like a simple UART, some registers to hold what you get and the code definitions? I have alot of electronic tech experience.

JXKeefe

Chris_Rogers · Apr 16th, 2007, 18:32

The only one I know of in the DIY range that will read the ABs (and others) is here:

http://www.ilexa.co.uk/content/category/2/2/19/

jxkeefe · Apr 17th, 2007, 17:51

Thank you. This is just what I was looking for.

JXKeefe

Apr 16th, 2007, 18:12	#12
jxkeefe New Member Last Online: Sep 11th, 2007 18:03 Join Date: Mar 2007 Location: Waltham	Thank You Mike Smith and Chris Rogers Had time to research how the older Volvo diag system worked. Followed the directions supplied and had complete success. Great Stuff!!! Any thoughts on getting ABS codes? Perhaps I will need the scan tool? If I know what the codes mean and what the serial data stream looks like, perhaps I could cook up my own scan tool. Sounds like a simple UART, some registers to hold what you get and the code definitions? I have alot of electronic tech experience. JXKeefe

Apr 17th, 2007, 17:51	#14
jxkeefe New Member Last Online: Sep 11th, 2007 18:03 Join Date: Mar 2007 Location: Waltham	Thanks Again - Great Info!! Thank you. This is just what I was looking for. JXKeefe

Mar 12th, 2007, 18:07	#11
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	You must build the code reader circuit as described above. ECC is on Pin 6 Read all the fault codes, if self adjustment of damper motors is required you should get fault code 5-1-1. If you have others you will need to fix these first. Then use the procedure below: SELF adjustment of damper motors 850 ECC TEST MODE 4 1) Turn ignition on. Press button on code reader 4 times (for about one second each time). LED should illuminate. 2) Control codes must be entered one step at a time. LED should go off after each digit is entered. Entering each digit in a code must be made within 4 seconds, as failure to do so will abort input and TEST MODE 4 must be restarted. Self-Adjustment Of Damper Motor Limit Positions 1) Turn ignition on. Place fan (blower motor) lever in manual mode. Turn function selector to AUT (automatic). Ensure system is in TEST MODE 4. 2) Enter control code 9-9-9 by pressing button on diagnostic unit 9 times in quick succession. Enter each of the 9 series 3 times, with a short pause in-between to allow LED to come on again. ECC control module is now ready to adjust damper motor limit positions automatically. 3) Wait about 10 seconds for fan to start. Turn ignition off to exit TEST MODE 4. Turn ignition on. AC OFF and REC indicator on A/C control panel should flash. Drive car for a few minutes at speeds greater than 20 MPH. 4) Stop car and turn engine off, but leave ignition on for at least 2 minutes to enable ECC control module to store all values. Start TEST MODE 1 and record DTCs. If DTC 1-1-1 appears, selfadjustment is complete. If DTC 5-1-1 appears, self-adjustment is not.

Apr 16th, 2007, 18:32	#13
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	The only one I know of in the DIY range that will read the ABs (and others) is here: http://www.ilexa.co.uk/content/category/2/2/19/

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