Ford Mustang Service Manual: Sensor - Front
Anti-Lock Control
Refer to Wiring Diagrams Cell 42 , Anti-Lock Brake for schematic and connector information.
Special Tool(s)
![]() |
Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent scan tool |
![]() |
73 Digital Multimeter or equivalent 105-R0051 |
Principles of Operation
The anti-lock brake control module receives wheel speed readings from each anti-lock brake sensor and processes this information to determine if an ABS event is necessary. The anti-lock brake sensor electrically senses each tooth of the anti-lock brake sensor indicators as it passes through the anti-lock brake sensor's magnetic field.
The anti-lock brake control module continuously monitors and compares the rotational speed of each wheel, and when it detects an impending wheel lock, modulates hydraulic brake pressure to the appropriate brake caliper. This is accomplished by the anti-lock brake control module triggering the hydraulic control unit (HCU) to open and close the appropriate solenoid valves. Once the affected wheel returns to normal speed, the anti-lock brake control module returns the solenoid valves to their normal position, and normal (base) braking resumes.
The anti-lock brake control module is self-monitoring. When the ignition switch is turned to the RUN position, the anti-lock brake control module will do a preliminary electrical check, and at approximately 12 km/h (8 mph) the pump motor is turned on for approximately one half-second. Any malfunction of the ABS will cause the ABS to shut off and the yellow ABS warning indicator to illuminate, however, normal power assisted braking remains.
The ABS control module has the ability to store multiple DTCs in memory.
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical and electrical damage.
Visual Inspection Chart
Mechanical |
Electrical |
|
|
3. If the concern remains after the inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:
1. Check that the program card is correctly installed.
2. Check the connections to the vehicle.
3. Check the ignition switch position.
4. If the scan tool still does not communicate with the vehicle, refer to the scan tool Manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with:
1. CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP.
2. NO RESP/NOT EQUIP for the anti-lock brake control module, Go To Pinpoint Test A .
3. SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the anti-lock brake control module.
6. If the DTCs retrieved are related to the concern, go to the Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Reference Chart to continue diagnostics.
7. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics.
Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index
NOTE: If a wheel speed signal fault or a pump motor fault is detected, the yellow ABS warning indicator cannot be reset with the key OFF and key ON method. The vehicle must be driven over 12 km/h (8 mph) for the anti-lock brake control module to carry out a re-check of the system before the yellow ABS warning indicator is turned OFF.
Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index
DTC | Description | Source | Action |
B1318 | Battery Voltage Low | ABS | Go To Pinpoint Test C . |
B1342 | ECU Is Defective | ABS | INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. |
B1484 | Brake Pedal Input Open Circuit | ABS | Go To Pinpoint Test D . REPAIR the DTCs retrieved. |
B1596 | Repair Continuous Codes | ABS | Go To Pinpoint Test E . |
C1095 | ABS Hydraulic Pump Motor Circuit Failure | ABS | Go To Pinpoint Test F . |
C1145 | RF Anti-Lock Brake Sensor Input Circuit Failure | ABS | Go To Pinpoint Test F . |
C1155 | LF Anti-Lock Brake Sensor Input Circuit Failure | ABS | Go To Pinpoint Test F . |
C1165 | RR Anti-Lock Brake Sensor Input Circuit Failure | ABS | Go To Pinpoint Test F . |
C1175 | LR Anti-Lock Brake Sensor Input Circuit Failure | ABS | Go To Pinpoint Test F . |
C1222 | Anti-Lock Brake Sensor Mismatch | ABS | Go To Pinpoint Test G . |
C1233 | LF Anti-Lock Brake Sensor Input Signal Missing | ABS | Go To Pinpoint Test H . |
C1234 | RF Anti-Lock Brake Sensor Input Signal Missing | ABS | Go To Pinpoint Test H . |
C1235 | RR Anti-Lock Brake Sensor Input Signal Missing | ABS | Go To Pinpoint Test H . |
C1236 | LR Anti-Lock Brake Sensor Input Signal Missing | ABS | Go To Pinpoint Test H . |
C1266 | ABS Valve Power Relay Circuit Failure | ABS | Go To Pinpoint Test I . |
Anti-Lock Brake Control Module Parameter Identification (PID) Index
PID | Description | Expected Value |
CCNTABS | Number of Continuous DTCS in the Anti-Lock Brake Control Module | one count per bit |
BOO_ABS | Brake Switch Input | OFF, ON |
PMP_MTR | ABS Pump Motor | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
VLV_CTR | ABS Valve Control Relay | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
LF_WSPD | LF Wheel Speed | 0-255 MPH |
RF_WSPD | RF Wheel Speed | 0-255 MPH |
LR_WSPD | LR Wheel Speed | 0-255 MPH |
RR_WSPD | RR Wheel Speed | 0-255 MPH |
ABSLF_I | LF ABS Inlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
ABSLF_O | LF ABS Outlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
ABSRF_I | RF ABS Inlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
ABSRF_O | RF ABS Outlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
ABSR_I | Rear ABS Inlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
ABSR_O | Rear ABS Outlet Valve | OFF---, OFFO--, OFF-B-, OFF--G, OFFO-G, OFFBG, OFFOBG, ON---, ONO--, ON-B-, ON--G, ONOG, ON-BG, ONOBG |
Anti-Lock Brake Control Module Active Command Index
Active Command | Display | Action |
ABS OUTPUT CONTROL | ABS POWER | OFF, ON |
DSBL TOG | OFF, ON | |
LF INLET | OFF, ON | |
LF OUTLET | OFF, ON | |
RF INLET | OFF, ON | |
RF OUTLET | OFF, ON | |
R INLET | OFF, ON | |
R OUTLET | OFF, ON |
Symptom Chart
NOTE: Refer to the Wiring Diagrams for connector numbers stated in the Pinpoint tests.
Condition | Possible Sources | Action |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pinpoint Tests
PINPOINT TEST A: NO COMMUNICATION WITH THE ANTI-LOCK BRAKE CONTROL MODULE
Test Step | Result / Action to Take |
A1 CHECK CIRCUIT 601 (LB/PK) FOR AN OPEN | Yes GO to A2 . No REPAIR the circuit. REPEAT the selftest. |
|
|
A2 CHECK THE ANTI-LOCK BRAKE CONTROL MODULE GROUNDS | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the selftest. No REPAIR the circuit in question. REPEAT the selftest. |
|
PINPOINT TEST B: UNABLE TO ENTER SELF-TEST
Test Step | Result / Action to Take |
B1 CHECK THE COMMUNICATIONS TO THE ANTI-LOCK BRAKE CONTROL MODULE | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. No Go To Pinpoint Test A . |
|
PINPOINT TEST C: DTC B1318, BATTERY VOLTAGE LOW
Test Step | Result / Action to Take |
C1 CHECK BATTERY VOLTAGE | Yes GO to C2 . No |
|
|
C2 CHECK THE VOLTAGE TO THE ANTI-LOCK BRAKE CONTROL MODULE | Yes GO to C3 . No REPAIR the circuit. CLEAR the DTCs. REPEAT the selftest. |
|
|
C3 CHECK THE ANTI-LOCK BRAKE CONTROL MODULE GROUNDS | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the selftest. No REPAIR the circuit in question. CLEAR the DTCs. REPEAT the selftest. |
|
PINPOINT TEST D: DTC B1484, BRAKE PEDAL INPUT OPEN CIRCUIT
Test Step | Result / Action to Take |
D1 CHECK THE STOPLAMPS FOR CORRECT OPERATION | Yes GO to D2 . No |
|
|
D2 CHECK THE BRAKE PEDAL INPUT TO THE ANTI-LOCK BRAKE CONTROL MODULE | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. No REPAIR Circuit 511 (LG) and Circuit 810 (RD/LG) as necessary. CLEAR the DTCs. REPEAT the self-test. |
|
PINPOINT TEST E: DTC C1095, ABS HYDRAULIC PUMP MOTOR FAILURE
Test Step | Result / Action to Take |
E1 CHECK THE PUMP MOTOR FOR CONTINUOUS OPERATION | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the selftest. No GO to E2 . |
|
|
E2 CHECK CIRCUIT 534 (YE/LG) FOR AN OPEN | Yes GO to E3 . No REPAIR the circuit. CLEAR the DTCs. REPEAT the selftest. |
|
|
E3 CHECK CIRCUIT 1205 (BK) FOR AN OPEN | Yes GO to E4 . No REPAIR the circuit. CLEAR the DTCs. REPEAT the selftest. |
|
|
E4 CHECK THE PUMP MOTOR FOR OPERATION | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the selftest. No INSTALL a new HCU; REFER to Hydraulic Control Unit . CLEAR the DTCs. REPEAT the self-test. |
|
PINPOINT TEST F: DTC C1145 (RF), C1155 (LF), C1165 (RR), C1175 (LR), ANTI-LOCK BRAKE SENSOR INPUT CIRCUIT FAILURE
Test Step | Result / Action to Take |
F1 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR CIRCUIT FOR SHORT TO POWER | Yes REPAIR the circuit in question. CLEAR the DTCs. REPEAT the selftest. No GO to F2 . |
|
|
F2 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR CIRCUIT FOR SHORT TO GROUND | Yes GO to F4 . No GO to F3 . |
|
|
F3 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR FOR A SHORT TO GROUND | Yes If RF, REPAIR Circuit 514 (YE/RD) and Circuit 516 (YE/BK), as necessary. CLEAR the DTCs. REPEAT the self-test. If LF, REPAIR Circuit 521 (TN/OG) and Circuit 522 (TN/BK), as necessary. CLEAR the DTCs. REPEAT the self-test. If RR, REPAIR Circuit 494 (TN/LG) and Circuit 492 (BN), as necessary. CLEAR the DTCs. REPEAT the selftest. If LR, REPAIR Circuit 496 (OG) and Circuit 499 (GY/BK), as necessary. CLEAR the DTCs. REPEAT the self-test. No INSTALL a new anti-lock brake sensor; REFER to Sensor-Front or Sensor-Rear . CLEAR the DTCs. REPEAT the self-test. |
|
|
F4 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR CIRCUIT FOR FOR AN OPEN | Yes GO to F5 . No REPAIR the circuit in question. CLEAR the DTCs. REPEAT the selftest. |
|
|
F5 CHECK THE ANTI-LOCK BRAKE SENSOR | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. No INSTALL a new anti-lock brake sensor; REFER to Sensor-Front or Sensor-Rear . CLEAR the DTCs. REPEAT the self-test. |
|
PINPOINT TEST G: DTC C1222, ANTI-LOCK BRAKE SENSOR MISMATCH
Test Step | Result / Action to Take |
G1 CHECK THE VEHICLE COMPONENTS | Yes GO to G2 . No REPAIR as necessary. CLEAR the DTCs. REPEAT the self-test. |
|
|
G2 TEST DRIVE THE VEHICLE | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. No If another DTC is retrieved, GO to the Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) index. If no DTCs are retrieved, the system is OK. |
|
PINPOINT TEST H: DTC C1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR), ANTI-LOCK BRAKE SENSOR INPUT SIGNAL MISSING
Test Step | Result / Action to Take |
H1 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR | Yes GO to H2 . No REPAIR as necessary. CLEAR the DTCs. REPEAT the self-test. |
|
|
H2 CHECK THE SUSPECT ANTI-LOCK BRAKE SENSOR INDICATOR | Yes GO to H3 . No INSTALL a new anti-lock brake sensor indicator; REFER to Sensor-Front or Sensor-Rear . CLEAR the DTCs. REPEAT the self-test. |
|
|
H3 CHECK THE ANTI-LOCK BRAKE SENSOR OUTPUT | Yes INSTALL a new anti-lock brake control module; REFER to Module . REPEAT the self-test. No INSTALL a new anti-lock brake sensor; REFER to Sensor-Front or Sensor-Rear . CLEAR the DTCs. REPEAT the self-test. |
|
PINPOINT TEST I: ABS VALVE POWER RELAY CIRCUIT FAILURE
Test Step | Result / Action to Take |
I1 CHECK CIRCUIT 534 (YE/LG) FOR AN OPEN | Yes GO to I2 . No REPAIR the circuit. CLEAR the DTCs. REPEAT the selftest. |
|
|
I2 CHECK CIRCUIT 532 (OG/YE) FOR AN OPEN | Yes REPAIR the open in Circuit 532 (OG/YE). CLEAR the DTCs. REPEAT the self-test. No GO to I3 . |
|
|
I3 CHECK CIRCUIT 1205 (BK) FOR AN OPEN | Yes INSTALL a new anti-lock brake control module. REFER to Module in this section. CLEAR the DTCs. REPEAT the self-test. No REPAIR the circuit. CLEAR the DTCs. REPEAT the selftest. |
|
PINPOINT TEST J: THE YELLOW ABS WARNING INDICATOR DOES NOT SELF-CHECK
Test Step | Result / Action to Take |
J1 CHECK THE ABS WARNING INDICATOR CIRCUITRY | Yes INSTALL a new anti-lock brake control module; REFER to Module . TEST the system for normal operation. No |
|
PINPOINT TEST K: SPONGY BRAKE PEDAL WITH NO WARNING INDICATOR
Test Step | Result / Action to Take |
K1 CHECK THE VEHICLE COMPONENTS | Yes GO to K2 . No REPAIR as necessary. TEST the system for normal operation. |
|
|
K2 BLEED THE BRAKE SYSTEM | Yes INSTALL a new HCU; REFER to Hydraulic Control Unit . TEST the system for normal operation. No The brake system is OK. TEST the system for normal operation. |
|
PINPOINT TEST L: POOR VEHICLE TRACKING DURING ANTI-LOCK
FUNCTION
Test Step | Result / Action to Take |
L1 BLEED THE BRAKE SYSTEM | Yes GO to L2 . No The brake system is OK. TEST the system for normal operation. |
|
|
L2 CHECK THE LF ABS VALVE OPERATION | Yes INSTALL a new HCU; REFER to Hydraulic Control Unit . TEST the system for normal operation. No GO to L3 . |
|
|
L3 CHECK THE LF ABS VALVE RELEASE | Yes GO to L4 . No GO to L8 . |
|
|
L4 CHECK THE RF ABS VALVE OPERATION | Yes INSTALL a new HCU; REFER to Hydraulic Control Unit . TEST the system for normal operation. No GO to L5 . |
|
|
L5 CHECK THE RF ABS VALVE RELEASE | Yes GO to L6 . No GO to L8 . |
|
|
L6 CHECK THE REAR ABS VALVE OPERATION | Yes INSTALL a new HCU; REFER to Hydraulic Control Unit . TEST the system for normal operation. No GO to L7 . |
|
|
L7 CHECK THE REAR ABS VALVE RELEASE | Yes The ABS system is operating correctly. No GO to L8 . |
|
|
L8 CHECK FOR DTCS | Yes GO to the Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index. No INSTALL a new HCU; REFER to Hydraulic Control Unit . TEST the system for normal operation. |
|
Module
Anti-Lock Control
Refer to Wiring Diagrams Cell 42 , Anti-Lock Brake for schematic and
connector information.
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generati ...
Sensor - Rear
Anti-Lock Control
Refer to Wiring Diagrams Cell 42 , Anti-Lock Brake for schematic and
connector information.
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generati ...
Other materials:
Transmission (Removal)
Manual Transmission
The TR3650 five-speed manual transmission features the following:
The fifth speed gear functions as an overdrive gear.
The forward gears are synchronized and helical cut.
The reverse gear operates through a constant-mesh, fully
...
Gear (Disassembly and Assembly)
Power Steering (Description and Operation)
System View
Steering System Components - 3.8L Engine
Steering System Components - 4.6L Engine
Steering Gear Mounting
Steering Gear
Power Steering Pump - CII
Power Steering ...
Temporary mobility kit
Note: The temporary mobility kit sealant compound in the canister is to
be used for one tire only. See your Ford authorized dealer for additional replacement
sealant canisters.
The kit is located in the spare tire well in the trunk. The kit consists of an ...