Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
Models without automatic drive positioner
ECM
Harness connector E30
Harness connector M1
Models with automatic drive positioner
ECM
Harness connector E29
Harness connector B10
2.CHECK HARNESS FOR OPEN CIRCUIT
Disconnect the connector of ECM.
Check the resistance between the ECM harness connector terminals.

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to EC-157, "Diagnosis Procedure".
Is the inspection result normal?
Main line between A-bag and ABS circuit
ADP branch line circuitChild safety rear door lock
Child safety locks help prevent the rear doors
from being opened accidentally, especially when
small children are in the vehicle.
The child safety lock levers are located on the
edge of the rear doors.
When the lever is in the unlock position 2 , the
door can be opened from the outside ...
C1109 battery voltage [abnormal]
Description
Supplies electric power to the ABS actuator and electric unit (control unit).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Diagnosis Procedure
1.CONNECTOR INSPECTION
Turn ignition switch OFF. ...
Brake tube and hose
Hydraulic Circuit
Actuator
Master cylinder
Brake booster
Connector
Union bolt
18.2 N*m (1.9 kg-m, 13 ft-lb)
Flare nut M12
22.1 N*m (2.3 kg-m, 16 ft-lb)
Flare nut M10
16.2 N*m (1.7 kg-m, 12 ft-lb)
CAUTION:
All hoses and piping (tubes) must be free fr ...