PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY
TERMINAL
NOTICE:
After the ignition switch is turned off, there may be a waiting
time before disconnecting the nega
DESCRIPTION
When the self-check function of the electric brake booster (brake
booster with master cylinder assembly) detects an internal circuit malfunction,
this DTC is stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
M
DESCRIPTION When the ignition switch is turned to ON, the auxiliary battery voltage is applied to IGP of the ECM. When the transistor in the MREL circuit operates, current flows from the auxiliary battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay which