90mm TB and X link issue
#33
TECH Addict
iTrader: (7)
No, there is nothing to sync.
Did you ever test with another TAC module? My theory is that the TAC module is resetting during powerup, so that the PCM powers up first and detects a loss of communication(1518)with the TAC module. The 5V regulator in the TAC module can trigger a reset of the microcontroller under certain conditions such as the output dropping below a given value, even momentarily. Let me know if a different TAC module makes a difference. We can do a swap for a modified X-Link that may help if this is the case.
Did you ever test with another TAC module? My theory is that the TAC module is resetting during powerup, so that the PCM powers up first and detects a loss of communication(1518)with the TAC module. The 5V regulator in the TAC module can trigger a reset of the microcontroller under certain conditions such as the output dropping below a given value, even momentarily. Let me know if a different TAC module makes a difference. We can do a swap for a modified X-Link that may help if this is the case.
#37
TECH Addict
iTrader: (7)
Depending on the design of the trigger circuit, splicing into a TPS circuit for a trigger can change things up again. P1518 is common with these.