Ford 2001 Ranger, Manual

Page: 167 / 1218

206-09-7 206-09-7 Anti-Lock Control
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1095 HYDRAULIC PUMP MOTOR CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
A1 CHECK FUSE AND POWER TO ANTI-LOCK BRAKE CONTROL
MODULE
•
Check 60A fuse 4 in the electric vehicle power distribution box Yes = GO to A2.
(EVPDB).
•
With key OFF, disconnect anti-lock brake control module C154. No = REPAIR as necessary.
•
With key ON, measure the voltage between pin 9 (Y/LG wire) on the
anti-lock brake control module C154 and ground. (V > 10 volts)
•
Is everything OK?
A2 CHECK PUMP MOTOR FOR CONTINUOUS OPERATION
•
With key ON, listen to the pump motor. Yes = REPLACE the anti-lock
brake control module.
•
Does the pump motor run continuously?
No = GO to A3.
A3 CHECK PUMP MOTOR OPERATION
•
Enter the active command mode ABS OUTPUT CONTROL and set the Yes = REPLACE the Anti-lock
active command PMP MOTOR to ON. Braking System
(ABS)/Hydraulic Control
Unit (HCU) assembly.
•
Does the pump motor operate?
No = GO toA4.
A4 CHECK CONNECTION OF PUMP MOTOR CONNECTOR
•
Verify the pump motor C1944 is securely seated. Yes = GO to A5.
•
Is the pump motor C1944 securely seated?
No = CONNECT the pump motor
C1944 securely and
RETEST.
A5 CHECK PUMP MOTOR CONNECTOR FOR CORROSION OR
DAMAGE
•
With key OFF, disconnect pump motor C1944 and check the pump Yes = GO to A6.
motor C1944 for corrosion or other obvious damage.
•
Is the pump motor C1944 OK?
No = CLEAN/REPAIR as
necessary and RETEST.
A6 CHECK PUMP MOTOR
•
With key OFF, connect 12 volts and ground to the terminals of the pump Yes = REPLACE the anti-lock
motor. brake control module.
•
Does the pump motor operate?
No = REPLACE the hydraulic
control unit (HCU).
PINPOINT TEST B: DTCs C1145, C1155, C1165, AND C1175, SPEED SENSOR INPUT CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
B1 CHECK RESISTANCE OF ANTI-LOCK BRAKE SENSOR
•
With key OFF, disconnect the anti-lock brake sensor connector in Yes = GO to B2.
question and measure the resistance between the two terminals of the
anti-lock brake sensor.
•
Is the resistance between 800 and 1400 ohms?
No = REPLACE the anti-lock
brake sensor.
B2 CHECK ANTI-LOCK BRAKE SENSOR FOR SHORT TO
GROUND
•
With key OFF, measure the resistance between either terminal of the Yes = GO to B3.
anti-lock brake sensor and ground.
•
Is the resistance greater than 10,000 ohms?
No = REPLACE the anti-lock
brake sensor.
B3 CHECK WIRING TO ANTI-LOCK BRAKE SENSOR FOR OPEN
(Continued)
2001 Ranger EV, 01/2001