Paul372 Posted April 14, 2024 Share Posted April 14, 2024 (edited) I had a problem with my auto box where it just kept slipping when putting the power down as the clutch packs had gone so I swapped it over with a uk spec auto box with new filter and oil and also fitted a titan 3200 high stall. Supe drove absolutely fine but I had some lights flashing on the dash. The overdrive and slip con lights are flashing alternately to each over and the main triangle light is very faintly on. Then the overdrive bottom stopped working as in it doesn’t pick up the revs now, the car still drives fine but now it won’t let me put any power down it’s like it’s in some kind of limp mode, seems like an electrical problem, any ideas or do you think the ecu is playing up thanks Edited March 23 by Paul372 (see edit history) Link to comment Share on other sites More sharing options...
AC93 Posted April 14, 2024 Share Posted April 14, 2024 Swapping ECUs with someone who has a spare would help. Is the battery charging correctly? Could be but hopefully not, a damaged autobox wiring plug/loom issue Link to comment Share on other sites More sharing options...
Paul372 Posted April 14, 2024 Author Share Posted April 14, 2024 Battery fine, just seems really strange it was all working fine now it’s decided to play up Link to comment Share on other sites More sharing options...
Burna Posted April 15, 2024 Share Posted April 15, 2024 On 4/14/2024 at 9:15 AM, Paul372 said: I had a problem with my auto box where it just kept slipping when putting the power down as the clutch packs had gone so I swapped it over with a uk spec auto box with new filter and oil and also fitted a titan 3200 high stall. Supe drove absolutely fine but I had some lights flashing on the dash. The overdrive and slip con lights are flashing alternately to each over and the main triangle light is very faintly on. Then the overdrive bottom stopped working as in it doesn’t pick up the revs now, the car still drives fine but now it won’t let me put any power down it’s like it’s in some kind of limp mode, seems like an electrical problem, any ideas or do you think the ecu is playing up thanks What error code are you seeing? Code 53 by any chance? Link to comment Share on other sites More sharing options...
Paul372 Posted April 21, 2024 Author Share Posted April 21, 2024 Tried checking the error codes with the paper clip trick but seems the engine light display not working Link to comment Share on other sites More sharing options...
Paul372 Posted April 23, 2024 Author Share Posted April 23, 2024 Managed to get the display working where the engine lights is, but can’t read any error codes as it’s just flashing constantly without any pauses IMG_8382.mov Link to comment Share on other sites More sharing options...
Rob W Posted April 23, 2024 Share Posted April 23, 2024 IIRC when the terminals are bridged, if the light is constantly flashing it denotes no error codes are stored. Link to comment Share on other sites More sharing options...
Paul372 Posted May 4, 2024 Author Share Posted May 4, 2024 These are the lights showing on the dash when driving, slip control not working and overdrive doesn’t work IMG_8384.mov Link to comment Share on other sites More sharing options...
Burna Posted May 4, 2024 Share Posted May 4, 2024 2 minutes ago, Paul372 said: These are the lights showing on the dash when driving, slip control not working and overdrive doesn’t work IMG_8384.mov This is becoming quite common now. I know an owner that has tried swapping multiple ECU’s, traction ECU’s, speed sensor on the box, and still the problem persists. It must be something we are all missing for some reason. I thought it could be an abs error, but also apparantly not. So no idea what’s causing this problem for some owners. Link to comment Share on other sites More sharing options...
Paul372 Posted May 4, 2024 Author Share Posted May 4, 2024 It’s got to be something electrical or a sensor I’m guessing Link to comment Share on other sites More sharing options...
Hamilton Posted May 4, 2024 Share Posted May 4, 2024 I learned that dry solder joints on the odometer can cause the OD and Slip Cont lights to flash with no error codes. I resoldered mine and the problem went away. Cruise control not working and/or the auto box hunting for gears or changing erratically can also be symptoms caused by dry solder in the same area, but I’m not sure whether they could cause the limp mode you’re experiencing. Some of the wires to the odo do connect with the speed sensor though. Could be worth a look. Link to comment Share on other sites More sharing options...
Paul372 Posted May 5, 2024 Author Share Posted May 5, 2024 I did read on here that possibility could be the speedo converter, might be worth a shot changing it, so i thought I’ll check it out, doesn’t look the best installation and unsure what brand was used Link to comment Share on other sites More sharing options...
Paul372 Posted May 5, 2024 Author Share Posted May 5, 2024 I can rule out the odo swapped it over with another one to test to see the overdrive would stop flashing but no change Link to comment Share on other sites More sharing options...
Paul372 Posted June 23, 2024 Author Share Posted June 23, 2024 Update, I took the ecu out and found a couple of capacitors had blown / leaked so I sent off the ecu for repair had all the capacitors changed. It has fixed most of the problems, overdrive now working, auto box now back to normal with changing up and down gear and powers back but I still have the overdrive light flashing and slip con light on. Link to comment Share on other sites More sharing options...
Benjy Posted June 23, 2024 Share Posted June 23, 2024 Have you looked at the throttle body? Link to comment Share on other sites More sharing options...
Paul372 Posted June 24, 2024 Author Share Posted June 24, 2024 No what could it be on the throttle body, is there anything I can check. Now the ecu sorted it might now record an error code fingers crossed Link to comment Share on other sites More sharing options...
Benjy Posted June 24, 2024 Share Posted June 24, 2024 If the trac motor or TPS aren’t right, it’ll upset the OD and Trac lights. It operates the traction control and will activate during gearchanges - The OD light I believe is the only transmission fault light. Count the flashes. 1 Link to comment Share on other sites More sharing options...
dash Posted February 10 Share Posted February 10 On 6/24/2024 at 11:21 PM, Benjy said: If the trac motor or TPS aren’t right, it’ll upset the OD and Trac lights. It operates the traction control and will activate during gearchanges - The OD light I believe is the only transmission fault light. Count the flashes. Has anybody found the solution for this yet.I've replaced both the main and trac ECU and still have the trac light on permanently and Manu mode doesn't work.I get nothing at all when I bridge T1 and E1,but a code 53 when bridging for trac faults. Link to comment Share on other sites More sharing options...
mattdavies Posted February 10 Share Posted February 10 3 minutes ago, dash said: Has anybody found the solution for this yet.I've replaced both the main and trac ECU and still have the trac light on permanently and Manu mode doesn't work.I get nothing at all when I bridge T1 and E1,but a code 53 when bridging for trac faults. Have you recalibrated both TPS ? there is guide in the Autobox group, it is an extract from the toyota repair manual Link to comment Share on other sites More sharing options...
dash Posted February 10 Share Posted February 10 4 minutes ago, mattdavies said: Have you recalibrated both TPS ? there is guide in the Autobox group, it is an extract from the toyota repair manual I've had the car 20 yrs and never touched or messed with them,do you still think they could have moved.Is there more than one fuse for the trac control do you know.Cheers. Link to comment Share on other sites More sharing options...
Paul372 Posted March 23 Author Share Posted March 23 Update, problem developed into and bigger one now car won’t change up gear, I was told it would be gearbox so I changed the gearbox again with OEM torque converter from a running car so I know it’s good and it’s still the same, so I know it’s not mechanical but definitely electrical. I havent tried swapping over the traction control ecu yet as can’t get hold of one to try, not sure what my options are now. What controls the auto box and tells it to change gear Link to comment Share on other sites More sharing options...
mattdavies Posted March 23 Share Posted March 23 Where are you based ? Link to comment Share on other sites More sharing options...
Paul372 Posted Thursday at 12:44 PM Author Share Posted Thursday at 12:44 PM Gravesend Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now