rwjiudice Posted May 16, 2008 Report Share Posted May 16, 2008 93 Seville 4.9L. 30k miles. Have had the "Service Ride Control" msg since I got the car 6 mo ago. I searched this forum and found several references to installing a relay on the control module in the trunk. Everyone says "it's a miracle"!!! Buit after I installed it, I still have the same message! After several hours of winding my head and scratching my watch, I looked at the instructions and they don't make any sense. Per the instructions, I wired the relay coil with a hot and a ground. Then cut the pink wire from the module and hooked it to one side of the relay contacts and the IPC side to the other contact. Now, when the car (relay) is energized, it simply "rehooks" the pink wire back together as before! No different action / signal, same IO39 code! The only thing I did not do is unhook the wires going to each strut. But what would that do? Any ideas?? Thanks!! Link to comment Share on other sites More sharing options...
Logan Posted May 17, 2008 Report Share Posted May 17, 2008 Here is the GM service bulletin. Maybe it will help. The disable procedure does work. What are you using for the relay? Subject: Procedure to Disable Illumination of Service Indicator AFTER the Installation of Passive Struts/Shocks Models: 1992-94 Buick Skylark 1993-96 Buick Park Avenue 1989-92 Cadillac Allante 1991-93 Cadillac Eldorado, Seville 1991-95 Cadillac DeVille 1991-95 Oldsmobile Ninety Eight 1992-93 Oldsmobile Achieva 1994-99 Pontiac Bonneville -------------------------------------------------------------------------------- This bulletin is being revised to clarify when this bulletin may be used to turn the service suspension lamp off . Also, a step has been added to the 1991 Cadillac Eldorado and Seville repair. Please discard Corporate Bulletin Number 00-03-11-001 (Section 3 -- Suspension). -------------------------------------------------------------------------------- Some owners may bring their vehicles in for service with an illuminated service suspension light. The service suspension indicator lamp is telling the owner that the vehicle is due for strut/shock replacement, a maintenance item. The customer may elect to have passive struts installed in their vehicles due to repair cost savings and/or parts availability. The installation of passive shock/struts will result in handling characteristics which are the equal to a like vehicle without the computer controlled ride, with all other components such as tires, tire pressure, springs, etc. being equal. The installation of (4) new passive struts will cause the continued illumination of the service suspension indicator. If desired by the customer, the service indicator may be disabled AFTER THE INSTALLATION OF THE (4) NEW PASSIVE STRUTS, using the appropriate service procedure listed below. This bulletin DOES NOT authorize this procedure unless (4) NEW PASSIVE STRUTS WERE INSTALLED ON THE VEHICLE. The wiring harness going to each strut and or shock assembly should be cut and taped back to clean-up the appearance both under the hood and under the vehicle. In addition, each specific vehicle will require a modification as outlined below. 1989-1992 Allante with Speed Dependent Damping (SDD) Refer to the Service Manual page 8D-13 (1989) or 8D-14 (1990-1992). On these vehicles, adjust the BCM Override value "BS08". To do this, use the warmer/cooler button on the CCDIC to decrease the BCM override value "BS08" which is displayed when you enter the system by two (2). When the desired number is displayed on the CCDIC, it must be stored by holding the "Elapsed Time" and "Fuel Used" buttons until the new value flashes on and off. When it flashes on and off, the new value has been stored. 1991 Eldorado and Seville with Computer Command Ride (CCR) Refer to the Service Manual page, 8D-12. Set the BCM override value "BS09" to "0" by using the warmer and cooler buttons. Store this value by pressing the "Econ" button on the Climate Control Panel and the "Instant Econ" button on the Fuel Data/Drivers Information Center for about five seconds. The new value will be stored even though the indicator does not flash. Remove the key from the ignition. Disconnect both battery cables from the battery. When both cables have been disconnected, touch the ends of the cables together and hold for five seconds. This will discharge the capacitors in the system and allow the system to perform properly when the battery cables are reconnected. Advise the customer they will have to reset all radio stations and the clock. 1992 Eldorado and Seville with Speed Sensitive Suspension (SSS) Refer to the Service Manual page, 8C1-11. Observe and record the IPC override "IS08" displayed value. Use the climate control "cooler" button to decrease the value displayed for "IS08" by "8". To store the new value, press and hold the "ECON" and "FRONT DEFROST" keys until the new value flashes on and off. 1993 Eldorado and Seville with Speed Sensitive Suspension and 4.9L Engine Only Refer to page 8A-43-6 in the 1992 Eldorado Seville Service Manual. Cut circuit 1020 (PINK). Attach the IPC side of circuit 1020 to relay pin 87A. Attach the module side of circuit 1020 to relay pin 86. Run a ground wire to relay pin 30. Run a wire from a switched ignition (hot in Run) source to relay pin 85. 1991-1993 DeVille with Computer Command Ride (CCR) Refer to the Service Manual, page 8A-43-0. Cut Circuit 1300 (Dark Green wire) at the CCR module (Pin C15) to disable the indicator lamp. Tape the wires back into the harness to prevent shorting to other components. 1994-1995 DeVille with Speed Sensitive Suspension (SSS) and 4.9L Engines Only Refer to the 1994 Eldorado, Seville, DeVille Service Manual, page 8A-43-14. Locate and cut circuit 370 (RED). Attach the IPC side of circuit 370 to pin 87A of the relay. Attach the module side of circuit 370 to pin 86 of the relay. Run a ground wire to relay pin 30. Run a wire from a switched ignition (hot in Run) source to relay pin 85. 1992-1993 Oldsmobile Achieva with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module which is attached to the back side of the right (passenger side) sound insulator panel. Follow the wiring harness up under the dash assembly and then cut and tape the wiring harness. 1992-1994 Buick Skylark with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module which is attached to the back side of the right (passenger side) sound insulator panel. Follow the wiring harness up under the dash assembly and then cut and tape the wiring harness. 1993-1996 Buick Park Avenue with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. 1991-1995 Oldsmobile Ninety Eight with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. 1994-1999 Pontiac Bonneville with Computer Command Ride (CCR) The feedback strut/shock assemblies are still available for these vehicles. However, if the customer desires to reduce the repair expense, the following steps may be taken to allow installation of non-feedback assemblies and the disabling of the malfunction indicator lamps. This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. Parts Information The following parts are required to make the correction on the 1993 Eldorado/Seville and the 1994-1995 DeVille. Part Number Description Qty 12193601 Relay 1 15306045 Connector 1 Parts are currently available from GMSPO. Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
rwjiudice Posted May 17, 2008 Author Report Share Posted May 17, 2008 Here is the GM service bulletin. Maybe it will help. The disable procedure does work. What are you using for the relay? Subject: Procedure to Disable Illumination of Service Indicator AFTER the Installation of Passive Struts/Shocks Models: 1992-94 Buick Skylark 1993-96 Buick Park Avenue 1989-92 Cadillac Allante 1991-93 Cadillac Eldorado, Seville 1991-95 Cadillac DeVille 1991-95 Oldsmobile Ninety Eight 1992-93 Oldsmobile Achieva 1994-99 Pontiac Bonneville -------------------------------------------------------------------------------- This bulletin is being revised to clarify when this bulletin may be used to turn the service suspension lamp off . Also, a step has been added to the 1991 Cadillac Eldorado and Seville repair. Please discard Corporate Bulletin Number 00-03-11-001 (Section 3 -- Suspension). -------------------------------------------------------------------------------- Some owners may bring their vehicles in for service with an illuminated service suspension light. The service suspension indicator lamp is telling the owner that the vehicle is due for strut/shock replacement, a maintenance item. The customer may elect to have passive struts installed in their vehicles due to repair cost savings and/or parts availability. The installation of passive shock/struts will result in handling characteristics which are the equal to a like vehicle without the computer controlled ride, with all other components such as tires, tire pressure, springs, etc. being equal. The installation of (4) new passive struts will cause the continued illumination of the service suspension indicator. If desired by the customer, the service indicator may be disabled AFTER THE INSTALLATION OF THE (4) NEW PASSIVE STRUTS, using the appropriate service procedure listed below. This bulletin DOES NOT authorize this procedure unless (4) NEW PASSIVE STRUTS WERE INSTALLED ON THE VEHICLE. The wiring harness going to each strut and or shock assembly should be cut and taped back to clean-up the appearance both under the hood and under the vehicle. In addition, each specific vehicle will require a modification as outlined below. 1989-1992 Allante with Speed Dependent Damping (SDD) Refer to the Service Manual page 8D-13 (1989) or 8D-14 (1990-1992). On these vehicles, adjust the BCM Override value "BS08". To do this, use the warmer/cooler button on the CCDIC to decrease the BCM override value "BS08" which is displayed when you enter the system by two (2). When the desired number is displayed on the CCDIC, it must be stored by holding the "Elapsed Time" and "Fuel Used" buttons until the new value flashes on and off. When it flashes on and off, the new value has been stored. 1991 Eldorado and Seville with Computer Command Ride (CCR) Refer to the Service Manual page, 8D-12. Set the BCM override value "BS09" to "0" by using the warmer and cooler buttons. Store this value by pressing the "Econ" button on the Climate Control Panel and the "Instant Econ" button on the Fuel Data/Drivers Information Center for about five seconds. The new value will be stored even though the indicator does not flash. Remove the key from the ignition. Disconnect both battery cables from the battery. When both cables have been disconnected, touch the ends of the cables together and hold for five seconds. This will discharge the capacitors in the system and allow the system to perform properly when the battery cables are reconnected. Advise the customer they will have to reset all radio stations and the clock. 1992 Eldorado and Seville with Speed Sensitive Suspension (SSS) Refer to the Service Manual page, 8C1-11. Observe and record the IPC override "IS08" displayed value. Use the climate control "cooler" button to decrease the value displayed for "IS08" by "8". To store the new value, press and hold the "ECON" and "FRONT DEFROST" keys until the new value flashes on and off. 1993 Eldorado and Seville with Speed Sensitive Suspension and 4.9L Engine Only Refer to page 8A-43-6 in the 1992 Eldorado Seville Service Manual. Cut circuit 1020 (PINK). Attach the IPC side of circuit 1020 to relay pin 87A. Attach the module side of circuit 1020 to relay pin 86. Run a ground wire to relay pin 30. Run a wire from a switched ignition (hot in Run) source to relay pin 85. 1991-1993 DeVille with Computer Command Ride (CCR) Refer to the Service Manual, page 8A-43-0. Cut Circuit 1300 (Dark Green wire) at the CCR module (Pin C15) to disable the indicator lamp. Tape the wires back into the harness to prevent shorting to other components. 1994-1995 DeVille with Speed Sensitive Suspension (SSS) and 4.9L Engines Only Refer to the 1994 Eldorado, Seville, DeVille Service Manual, page 8A-43-14. Locate and cut circuit 370 (RED). Attach the IPC side of circuit 370 to pin 87A of the relay. Attach the module side of circuit 370 to pin 86 of the relay. Run a ground wire to relay pin 30. Run a wire from a switched ignition (hot in Run) source to relay pin 85. 1992-1993 Oldsmobile Achieva with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module which is attached to the back side of the right (passenger side) sound insulator panel. Follow the wiring harness up under the dash assembly and then cut and tape the wiring harness. 1992-1994 Buick Skylark with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module which is attached to the back side of the right (passenger side) sound insulator panel. Follow the wiring harness up under the dash assembly and then cut and tape the wiring harness. 1993-1996 Buick Park Avenue with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. 1991-1995 Oldsmobile Ninety Eight with Computer Command Ride (CCR) This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. 1994-1999 Pontiac Bonneville with Computer Command Ride (CCR) The feedback strut/shock assemblies are still available for these vehicles. However, if the customer desires to reduce the repair expense, the following steps may be taken to allow installation of non-feedback assemblies and the disabling of the malfunction indicator lamps. This is a stand alone system. Remove the CCR module, which is located under the carpeting beneath the driver's seat. Parts Information The following parts are required to make the correction on the 1993 Eldorado/Seville and the 1994-1995 DeVille. Part Number Description Qty 12193601 Relay 1 15306045 Connector 1 Parts are currently available from GMSPO. I was using a generic relay from an auto parts store. But this morning I installed the GM specified relay. I still get the error. Any ideas? The only 2 differences from the instructions I made were 1) I did not "remove all the sensors from the struts". And 2) I did not run separate hot and grounds. I simply tapped off the existing hot and ground from the PCM. Link to comment Share on other sites More sharing options...
Logan Posted May 18, 2008 Report Share Posted May 18, 2008 I too, had a 1993 Seville. It's been 10 years since I installed the relay on mine. So I have forgotten the what the theroy is on installing the relay. It should also be noted, on the Eldos, 1020 is a red wire vs. pink wire. IO39 is simply a flag on the IPC to go check codes in the SSS ride control system module. It's something like the IPC needs a ground (or lack of) on the 1020 circuit to signal the IPC to flag the 'service ride control' message. How you tapped power off the ECM/ PCM is a mystery to me, it's a mile away behind the glove box. Something doesnt make sense... Have car 'on' power to the coil, which would simply reconnect the 2 pink wires...somethings missing..there needs to be a jumper or something in there.. Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
rwjiudice Posted May 20, 2008 Author Report Share Posted May 20, 2008 I too, had a 1993 Seville. It's been 10 years since I installed the relay on mine. So I have forgotten the what the theroy is on installing the relay. It should also be noted, on the Eldos, 1020 is a red wire vs. pink wire. IO39 is simply a flag on the IPC to go check codes in the SSS ride control system module. It's something like the IPC needs a ground (or lack of) on the 1020 circuit to signal the IPC to flag the 'service ride control' message. How you tapped power off the ECM/ PCM is a mystery to me, it's a mile away behind the glove box. Something doesnt make sense... Have car 'on' power to the coil, which would simply reconnect the 2 pink wires...somethings missing..there needs to be a jumper or something in there.. Thanks for your interest and help with my problem. What I actually meant was "I tapped the brown wire that goes to the module to get my "hot" wire, and the black that goes to the module to get my ground". This morning I undid that and found a separate "hot" and "ground" and wired those to the relay. I'm still getting the "Service Ride Control" message (no change). The instructions say clip the "pink" wire to the module and hook it to the relay, which is what I did. My schematic shows the pink wire is circuit 1020, "fault output to the IPC" so that appears to be correct for my vehicle (93 Seville, 4.9L). Now I'm at a loss! What to do? Am I doomed to a life of hitting the reset every time I start the car?? Thanks for you input. Any other ideas? Link to comment Share on other sites More sharing options...
Logan Posted May 21, 2008 Report Share Posted May 21, 2008 "After several hours of winding my head and scratching my watch, I looked at the instructions and they don't make any sense. Per the instructions, I wired the relay coil with a hot and a ground. Then cut the pink wire from the module and hooked it to one side of the relay contacts and the IPC side to the other contact." I agree, it does not make sense to reconnect the 2 pink wires thru a relay. Could be a factory misprint. Not the first time. I've done some looking around and cannot find a updated, corrected bulletin. I think the bulletin is trying to create a switched ground signal to the IPC. Any, I would ignore the pink output wire from the SSS module. Instead, I would use a jumper from the ground pin 30 to the old SSS module side pink wire at the relay (pin 86). I think this may be the correct version. I did mine 10 years ago. It sure seems like I remember a small jumper at the relay. That car (also a '93 Seville) is long gone so no way to inspect the wiring. No guarantees.. Cut circuit 1020 (PINK). (yes) Attach the IPC side of circuit 1020 to relay pin 87A. (yes) Attach the module side of circuit 1020 to relay pin 86. (no) Run a ground wire to relay pin 30. (yes, in addition, run ground jumper wire to pin 86) Run a wire from a switched ignition (hot in Run) source to relay pin 85. (yes) Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
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