Logan

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Logan last won the day on September 28

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About Logan

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    Logan Diagnostic

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    Male
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    Franklin, TN

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  • Car Model and Year
    Fake DTS, 2010 MINI S, 2010 MINI JCW
  • Engine
    Northstar 4.6L V8 (LD8/L37)

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  1. I was curious about the export pump....I found a couple of pics on Google. Search 'GM 25638963'.
  2. Flasher relay

    Looking at the schematics a little.....2006 DTS... The turn signal signal switch assembly has a ground G300. Hazard switch uses the same G300 ground. I sure would like to inspect G300 under the drivers seat. Ground G300 is #2 in the picture.
  3. Flasher relay

    I would not put too much emphasis on the non-working third brake light. That era of DTS third brake lamps have a extremely high failure rate. It should be noted that it is not working as a possible clue.....but don't get too hung up on it. Personally... I think they should go back to $2 light bulbs.
  4. Flasher relay

    I haven't really been following the diagnosis path with what has been covered etc. I was just providing info from the GM service manual. Anyway....if the problem is a PCB relay.....it won't be just a easy part swap. I've heard of them....but have not had to work on any PCB fuseblocks. Here is a quick link I found about PCB fuseblocks....yikes...are glass BUSS fuses going the way of the buggy whip too? http://www.ansys.com/about-ansys/advantage-magazine/volume-x-issue-1-2016/keeping-the-block-cool
  5. Flasher relay

    The info was looked up as a 2006 DTS. On first glance....the service info shows the high beam relay is a pcb relay and is non serviceable...underhood fuse block. Pic of the switch
  6. Flasher relay

    Rather lengthy page in the GM service manual about the headlight malfunction. This is the service info for a 2006 DTS. Headlamps Malfunction Diagnostic Instructions • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure • Review Strategy Based Diagnosis for an overview of the diagnostic approach • Diagnostic Procedure Instructions provides an overview of each diagnostic category Diagnostic Fault Information Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Low Beam Headlamp Supply Voltage 1 1 3 -- High Beam Headlamp Supply Voltage 2 2 4 -- Headlamp Low Beam Relay Control 1 1 B2575 00 -- Headlamp High Beam Relay Control 2 2 B2580 00 -- Headlamp Switch Headlamps Off Signal B257A 00 6 6* -- Headlamp Switch Headlamps On Signal B257A 00 1 1* -- Flash to Pass Switch Signal 4 5 5* -- Headlamp Dimmer Switch High Beam Signal 4 2 2* -- Low Beam Headlamp Ground -- 1 1 -- High Beam Headlamp Ground -- 2 2 -- Headlamp Switch Ground -- 1, 2 1, 2 -- Turn Signal/Multifunction Switch Ground -- 2, 5 2, 5 -- * Internal damage to the switch may occur if shorted to B+ Low Beam Headlamp(s) Inoperative High Beam Headlamp(s) Inoperative Low Beam Headlamp(s) Always On High Beam Headlamp(s) Always On Flash to Pass Inoperative Headlamp Defeat Inoperative Circuit/System Description The vehicle headlamps are controlled by the body control module (BCM) based on inputs from the headlamp switch and the turn signal/multifunction switch. The headlamp switch has four positions: Off, Auto, Park, and Headlamps. The default headlamp switch position is Auto, in which the BCM uses the ambient light sensor to determine when headlamps are needed. The Off portion of the headlamp switch is a momentary switch which overrides the automatic headlamps and will turn off the vehicle headlamps. When in the Off position, the headlamp switch grounds the headlamp switch headlamps off signal circuit, prompting the BCM to turn off all exterior lamps. The Park position of the headlamp switch will only illuminate the vehicle parking lamps. The Headlamp position of the headlamp switch will illuminate both the parking lamps, as well has the headlamps. With the headlamp switch in the Headlamp position, the headlamp switch headlamps on signal circuit is grounded, prompting the BCM to turn on the headlamps, regardless of other factors such as ambient light. The headlamp high beams are controlled through the flash to pass switch and the headlamp dimmer switch, both located in the turn signal/multifunction switch. The flash to pass switch is a momentary type switch, designed to illuminate the high beams as long as the switch is held. With the switch closed, the flash to pass switch signal circuit is grounded, prompting the BCM to turn on the high beam lamps. The headlamp dimmer switch allows the operator to select between full time high or low beam operation. Unlike the flash to pass switch, it is not a momentary switch. When the headlamp dimmer switch is in the high beam position, the headlamp dimmer switch high beam signal circuit is grounded. This prompts the BCM to turn on the high beam lamps. The BCM controls the headlamps based on the inputs explained above. When a low beam request is received, the BCM grounds the headlamp low beam relay control circuit. This energizes the coil in the LO BEAM PCB Relay, causing the relay switch to close. This then applies B+ through the LT LO BEAM and RT LO BEAM fuses, the headlamp supply voltage circuits to the headlamp ballasts, illuminating the headlamps. When a high beam request is received, the BCM grounds the headlamp high beam relay control circuit. This energizes the coil in the HIGH BEAM PCB Relay, causing the relay switch to close. Battery voltage is then applied through both HI BEAM fuses and the high beam headlamp supply voltage circuits to the headlamp high beam solenoids. The solenoids then open the low beam shields to fully expose the headlamp bulbs for high beam operation. Reference Information Schematic Reference Headlights/Daytime Running Lights (DRL) Schematics Connector End View Reference Lighting Systems Connector End Views Description and Operation Exterior Lighting Systems Description and Operation Electrical Information Reference • Circuit Testing • Connector Repairs • Testing for Intermittent Conditions and Poor Connections • Wiring Repairs Scan Tool Reference • Scan Tool Output Controls • Scan Tool Data List • Scan Tool Data Definitions Circuit/System Verification Ignition ON, observe the scan tool Auto Hdlp. Disable Sw. parameter while cycling the headlamp switch between the Auto and Off positions. The parameter should cycle between Active and Inactive. ⇒ If the parameter does not cycle between the specified values, refer to Headlamp Switch Circuit Test. Observe the scan tool Headlamp Switch parameter while cycling the headlamp switch between the Auto and Head position. The parameter should cycle between Active and Inactive. ⇒ If the parameter does not cycle between the specified values, refer to Headlamp Switch Test. With the headlamps ON, observe the scan tool Flash to Pass Switch parameter while pulling and releasing the flash to pass switch. The parameter should cycle between Active and Inactive. ⇒ If the parameter does not cycle between the specified values, refer to Turn Signal/Multifunction Switch Test. With the headlamps ON, observe the scan tool High Beam Select Switch parameter while switching the headlamp dimmer switch between the low and high beam positions. The parameter should cycle between Active and Inactive. ⇒ If the parameter does not cycle between the specified values, refer to Turn Signal/Multifunction Switch Test. Ignition ON, with a test lamp connected to ground, probe each of the test points on either LO BEAM Fuse while commanding the Low Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF at one or both of the fuse test points when changing between commanded states. ⇒ If the test lamp is always OFF, or remains always ON, refer to Low Beam PCB Relay Circuit Test. ⇒ If the test lamp turns ON and OFF, refer to Headlamps Circuit Test Ignition ON, with a test lamp connected to ground, probe each of the test points on either HI BEAM Fuse while commanding the High Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF at one or both of the fuse test points when changing between commanded states. ⇒ If the test lamp is always OFF, or remains always ON, refer to High Beam PCB Relay Circuit Test. ⇒ If the test lamp turns ON and OFF, refer to High Beam Circuit Test Ignition ON, headlamps ON, observe the high beam indicator on the IPC while cycling the high beam dimmer switch ON and OFF. The indicator should turn ON and OFF when changing between commanded states. ⇒ If the indicator is always OFF or remains always ON, replace the IPC. Circuit/System Testing Caution: The high intensity discharge system produces high voltage and current. To reduce the risk of severe shocks and burns: • Never open the high intensity discharge system ballast or the arc tube assembly starter. • Never probe between the high intensity discharge system ballast output connector and the arc tube assembly. Headlamp Switch Circuit Test Ignition OFF, disconnect the harness connector at the headlamp switch. Ignition OFF, verify that a test lamp illuminates between the ground circuit terminal 8 and B+. ⇒ If the test lamp does not illuminate, test the ground circuit for an open/high resistance. Ignition ON, verify the scan tool Headlamp Switch parameter is Inactive. ⇒ If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the BCM. Verify the scan tool Auto Hdlp. Disable Sw. parameter is Inactive. ⇒ If not the specified value, test the signal circuit terminal 3 for a short to ground. If the circuit tests normal, replace the BCM. Install a 3A fused jumper wire between the signal circuit terminal 1 and ground. Verify the scan tool Headlamp Switch parameter is Active. ⇒ If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM. Install a 3A fused jumper wire between the signal circuit terminal 3 and ground. Verify the scan tool Auto Hdlp. Disable Sw. parameter is Active. ⇒ If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, test or replace the headlamp switch. Turn Signal/Multifunction Switch Circuit Test Ignition OFF, disconnect the (C2) harness connector at the turn signal/multifunction switch. Ignition OFF, test for less than 5.0 ohms of resistance between the ground circuit terminal D and ground. ⇒ If greater than the specified range, test the ground circuit for an open/high resistance. Ignition ON, verify the scan tool Flash to Pass Switch parameter is Inactive. ⇒ If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM. Verify the scan tool High Beam Select Switch parameter is Inactive. ⇒ If not the specified value, test the signal circuit terminal E for a short to ground. If the circuit tests normal, replace the BCM. Install a 3A fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool Flash to Pass Switch parameter is Active. ⇒ If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM. Install a 3A fused jumper wire between the signal circuit terminal E and ground. Verify the scan tool High Beam Select Switch parameter is Active. ⇒ If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, test or replace the turn signal/multifunction switch. Low Beam PCB Relay Circuit Test Ignition OFF, disconnect the (C2) harness connector at the underhood fuse block. Connect a test lamp between the control circuit terminal 10 and B+. Ignition ON, command the Low Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. ⇒ If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. ⇒ If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, replace the underhood fuse block. Headlamps Circuit Test Disconnect the harness connector at the inoperative headlamp assembly. Ignition OFF, test for less than 5.0 ohms of resistance between the ground circuit terminal F and ground. ⇒ If greater than the specified range, test the ground circuit for an open/high resistance. Connect a test lamp between the supply voltage circuit terminal E and ground. Ignition ON, command the Low Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. ⇒ If the test lamp is always ON, test the supply voltage circuit for a short to voltage. If the circuit tests normal, replace the underhood fuse block. ⇒ If the test lamp is always OFF, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the underhood fuse block. If all circuits test normal, test or replace the inoperative headlamp bulb. High Beam PCB Relay Circuit Test Ignition OFF, disconnect the (C2) harness connector at the underhood fuse block. Connect a test lamp between B+ and the control circuit terminal 19. Ignition ON, command the High Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. ⇒ If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. ⇒ If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, replace the underhood fuse block. High Beam Circuit Test Disconnect the harness connector at the inoperative headlamp assembly. Ignition OFF, test for less than 5.0 ohms of resistance between the ground circuit terminal F and ground. ⇒ If greater than the specified range, test the ground circuit for an open/high resistance. Connect a test lamp between the supply voltage circuit terminal D and ground. Ignition ON, command the High Beams ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. ⇒ If the test lamp is always ON, test the supply voltage circuit for a short to voltage. If the circuit tests normal, replace the underhood fuse block. ⇒ If the test lamp is always OFF, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the underhood fuse block. If all circuits test normal, test or replace the inoperative headlamp assembly. Component Testing Headlamp Switch Ignition OFF, disconnect the harness connector at the headlamp switch. Test for infinite resistance between the signal terminal 3 and the ground terminal 8 with the switch in the Auto position. ⇒ If not the specified value, replace the headlamp switch. Test for infinite resistance between the signal terminal 1 and the ground terminal 8 with the switch in the Auto position. ⇒ If not the specified value, replace the headlamp switch. Test for less than 2.0 ohms of resistance between the signal terminal 3 and the ground terminal 8 with the switch in the Off position. ⇒ If not the specified value, replace the headlamp switch. Test for less than 2.0 ohms of resistance between the signal terminal 1 and the ground terminal 8 with the switch in the Headlamp position. ⇒ If not the specified value, replace the headlamp switch. Turn Signal/Multifunction Switch Ignition OFF, disconnect the (C2) harness connector at the turn signal/multifunction switch. Test for infinite resistance between the signal terminal A and the ground terminal D with the flash to pass switch in the open position. ⇒ If not the specified value, replace the turn signal/multifunction switch. Test for infinite resistance between the signal terminal E and the ground terminal D with the headlamp dimmer switch in the low beam position. ⇒ If not the specified value, replace the turn signal/multifunction switch. Test for less than 2.0 ohms of resistance between the signal terminal A and the ground terminal D with the flash to pass switch in the closed position. ⇒ If not the specified value, replace the turn signal/multifunction switch. Test for less than 2.0 ohms of resistance between the signal terminal E and the ground terminal D with the headlamp dimmer switch in the high beam position. ⇒ If not the specified value, replace the turn signal/multifunction switch.
  7. 2004 Deville won't start.

    I kinda thought the same thing when my 2001 did it. Just after filing up.....rough running....SES lamp...was it bad gas? Anyway...171 and 174. Both banks running lean codes. Could be failed rubber coupler under the intake. Cadillac only part....about $20. Intake has to come off the replace. It will look ok from above....it will be rotted out on the bottom. Bad ones cause 171 and 174 all the time.
  8. It's in the transmission section of the service manual. DTC P0897 Circuit Description Transmission fluid life is determined by monitoring transmission fluid temperature over a period of time. The powertrain control module (PCM) calculates transmission fluid life based on a set of temperature ranges stored in PCM memory. As the vehicle is driven, a counter increments. The rate at which the counter increments depends on the temperature range in which the transmission is currently operating in. The higher the temperature range, the faster the counter increments. As the counts increment, the PCM will begin to decrease the fluid life percentage from 100, high fluid life, to 0, low fluid life. If the PCM detects a calculated transmission oil life of 10 percent or less, then DTC P0897 sets. DTC P0897 is a type C DTC. Conditions for Running the DTC No transmission fluid temperature (TFT) DTCs P0711, P0712, or P0713. Conditions for Setting the DTC The calculated transmission oil life remaining is 10 percent or less. Action Taken When the DTC Sets • The PCM does not illuminate the malfunction indicator lamp (MIL). • CHANGE TRANSMISSION FLUID displays on the driver information center (DIC). • The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Failure Records. • The PCM stores DTC P0897 in PCM history. Conditions for Clearing the DIC/DTC • The PCM clears the DIC when the condition no longer exits. • A scan tool can clear the DTC. • The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission-related diagnostic fault occurring. • The PCM cancels the DTC default actions when the fault no longer exists and the DTC passes. Diagnostic Aids Inspect the transmission cooling system for possible blockage and restrictions. Test Description The numbers below refer to the step numbers on the diagnostic table. This step changes the AT fluid and filter. It is important to reset the oil life monitor after the fluid and filter are replaced.
  9. My GM DVD service info only goes up to 2009-2010. There is a online source for GM service manual information. Same thing the dealers use. It's $20 for unlimited 3 days access. Up-to-date service bulletins etc too. All of GM 1998 and newer. You are not limited to one model during the subscription. So you can look up info on your neighbors Buick at the same time. Print all you want. GM employees can get free access using their GMID. But not thru the AC Delco site. http://www.acdelco.com/for-professionals/gm-service-information.html Kind of makes the $250 Helm Inc service manuals obsolete. Not sure if Helm even prints service manuals anymore..
  10. I would check the wire harness where it passes between the body and door. The wires can fatigue and break. Picture is not mine....and is not a Cadillac. But can happen on any car.
  11. I do not. My GM DVD ends at 2010. I currently use the GM online service info if I really need something. Its $20 for unlimited access for 3 days. Plus it has up-to-date service bulletins. http://www.acdelco.com/for-professionals/gm-service-information.html As for replacement....I would think if the VIN is still stamped on the trans.....it is the original unit. You may have to look up the location in the service info. There is typically a pad where that gets stamped on. And it should be very clean and precise.... they use a machine to stamp it....and I don't mean with paint. Also....a replacement may be stamped with a service part #.
  12. From history on my 2001 Deville... The TCC solenoid is fried....the TCC code 1860 is causing a false 741. Transmission side pan technically has to come off to replace the TCC solenoid. There are some youtube videos showing wiggling in a replacement solenoid with the trans in the car. You can try it.....but you need to have a plan B for lowering the trans to get the side cover off to replace the TCC solenoid which should fix those 2 codes.
  13. My DeVille Got Hit

    Same lamp....different MINI. 18 months after spraying with Spray Max 2K.. Zero additional care or maintenance .....no waxing or polishing since spraying. No deterioration at all.
  14. My DeVille Got Hit

    It's the perfect stuff. Cheap....extremely durable....extreme wet glossy look....crystal clear. Not a paint.....more like a 2 part epoxy. You will likely only find it on eBay. I have not seen it locally here..(Nashville). Has like a 48 hour pot life. I have lamps that were sprayed 2 years ago.....they look like I did them yesterday. Guys that paint custom motorcycle gas tanks love it. Spilled gas does not remelt it. Has extreme scratch filling ability. You do not need to polish the lamp after sanding. See Saturn headlights pics below. Sanded....then sprayed. No polish. You need a warm dry day. Product can cloud up some when spayed....it clears up as it dries / cures. You can easily sand and polish out any small flaws.
  15. My DeVille Got Hit

    This stuff works great for headlights. Two part...extremely glossy....cures rock hard...has UV protectant..