Ford 2001 Ranger, Manual

Page: 169 / 1218

206-09-9 206-09-9 Anti-Lock Control
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST B: DTCs C1145, C1155, C1165, AND C1175, SPEED SENSOR INPUT CIRCUIT FAILURE
TEST STEP ACTION TO TAKE
•
With key OFF, disconnect LF anti-lock brake sensor C151 and measure No = REPAIR the Y/BK wire
the resistance between pin 17 (T/BK wire) on anti-lock brake control (RF), T/BK wire (LF),
module C154 and ground. PK/BK wire (RR), or
LG/BK wire (LR).
RR Anti-Lock Brake Sensor:
•
With key OFF, disconnect RR anti-lock brake sensor C4995 and measure
the resistance between pin 7 (PK/BK wire) on anti-lock brake control
module C154 and ground.
LR Anti-Lock Brake Sensor:
•
With key OFF, disconnect LR anti-lock brake sensor C4994 and measure
the resistance between pin 21 (LG/BK wire) on anti-lock brake control
module C154 and ground.
•
Is the resistance greater than 10,000 ohms?
B7 VERIFY CONCERN IS RESOLVED
•
Reconnect anti-lock brake control module C154. Yes = REPLACE the Anti-lock
•
Clear the ABS DTCs. Braking System
(ABS)/Hydraulic Control
Unit (HCV) assembly.
•
Drive the vehicle. No = Concern is intermittent.
•
Retrieve ABS DTCs. INSPECT all connections
•
Does the same DTC occur?
for corrosion, pin pushout,
and terminal contact.
REPAIR as necessary.
PINPOINT TEST C: DTC C1184 ABS SYSTEM IS NOT OPERATIONAL
TEST STEP ACTION TO TAKE
C1 CHECK ANTI-LOCK BRAKE SYSTEM (ABS) FOR DIAGNOSTIC
TROUBLE CODES (DTCs)
NOTE: DTC C1184 ABS System Is Not Operational occurs if the ignition Yes = REFER to
Symptom Chart.
key is cycled OFF/ON too fast. Do not carry out any pinpoint tests related
to the ABS unless the yellow ABS warning indicator is illuminated and
ABS DTCs occur.
•
Retrieve ABS DTCs.
•
Did any ABS DTCs occur?
No = GO to C2.
C2 CHECK TRACTION INVERTER MODULE (TIM) FOR DTCs
•
Clear the TIM DTCs. Yes = GO to Pinpoint Test F.
•
Turn the ignition key to the START position and retrieve DTCs from the No = System OK. CHECK for
TIM. intermittent wiring
•
Does DTC U2015 Signal Link Fault (Non SCP) occur?
connections.
PINPOINT TEST D: DTCs C1233, C1234, C1235, AND C1236, WHEEL SPEED — INPUT SIGNAL MISSING
TEST STEP ACTION TO TAKE
D1 CHECK MOUNTING OF ANTI-LOCK BRAKE SENSOR
•
Inspect the anti-lock brake sensor in question for loose mounting. Yes = GO to D2.
•
Is the anti-lock brake sensor secure?
No = TIGHTEN the anti-lock
brake sensor to specification
and RETEST.
D2 CHECK TONE RING
(Continued)
2001 Ranger EV, 01/2001