re: HDJ 100 blocage BVA en 4 .....
Posté : ven. sept. 25, 2020 12:31 pm
A750F won't shit in 5th...
y a plein de posts sur le sujet et des causes différentes, passage valise obligé pour avoir tous les codes erreur,
surement un capteur qq part qui déconne...
https://www.landcruiserclub.net/communi ... ar.153438/
https://atracom.blob.core.windows.net/w ... uction.pdf
The A750E/F uses two temperature sensors, each with a different function.•ATF Temp #1 –Used by the ECM to modify pressure control of the clutches and Brakes (if failed, 5thgear up-shift and Flex lock-up are prohibited)•ATF Temp #2 –Used by the ECM for shift timing control when the ATF temperature is high.
confirmé sur autre post:
Might need to check the trans temp switchs.
Will not let it shift into overdrive until it says trans is warm enough. There are 2ATF temp sensors that tie back to the ecm.
See if you have codes DTC P0712 and P0713.
during the #1ATF temp sensor malfunction up-shift to 5th gear and lock-up are prevented.
en gros une histoire de sonde de temperature qui déconne et ferai que la boite croit qu'elle est encore froide et reste en 4?
https://www.fjcruiserforums.com/threads ... ar.286393/
test : mets toi en 4 manuellement a un bon régime puis passe en D a meme vitesse, si tu vois que le régime moteur baisse c'est que tu es passé en 5 sans que l'affichage ne change?
"There are many things what will cause the PCM to inhibit 5th (overdeive). A few examples are misfire codes, engine temperature, knock sensor codes, MLP (manual lever position switch, etc. A quick scan will reveal the problem. When you have a problem like this never disconnect your battery. When you disconnect your battery you lose the freeze frame data which is a snapshot of what caused the failure"
y a plein de posts sur le sujet et des causes différentes, passage valise obligé pour avoir tous les codes erreur,
surement un capteur qq part qui déconne...
https://www.landcruiserclub.net/communi ... ar.153438/
https://atracom.blob.core.windows.net/w ... uction.pdf
The A750E/F uses two temperature sensors, each with a different function.•ATF Temp #1 –Used by the ECM to modify pressure control of the clutches and Brakes (if failed, 5thgear up-shift and Flex lock-up are prohibited)•ATF Temp #2 –Used by the ECM for shift timing control when the ATF temperature is high.
confirmé sur autre post:
Might need to check the trans temp switchs.
Will not let it shift into overdrive until it says trans is warm enough. There are 2ATF temp sensors that tie back to the ecm.
See if you have codes DTC P0712 and P0713.
during the #1ATF temp sensor malfunction up-shift to 5th gear and lock-up are prevented.
en gros une histoire de sonde de temperature qui déconne et ferai que la boite croit qu'elle est encore froide et reste en 4?
https://www.fjcruiserforums.com/threads ... ar.286393/
test : mets toi en 4 manuellement a un bon régime puis passe en D a meme vitesse, si tu vois que le régime moteur baisse c'est que tu es passé en 5 sans que l'affichage ne change?
"There are many things what will cause the PCM to inhibit 5th (overdeive). A few examples are misfire codes, engine temperature, knock sensor codes, MLP (manual lever position switch, etc. A quick scan will reveal the problem. When you have a problem like this never disconnect your battery. When you disconnect your battery you lose the freeze frame data which is a snapshot of what caused the failure"
