Turn off check engine while abs control module is not connected

Possibly a wheel sensor or a reluctor.

DTC C1275
PCM Requested ETS to Be Disabled

The PCM monitors various parameters and will not allow traction control operation if any parameter falls outside a specified range.
Conditions for Setting the DTC
The PCM diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the EBCM indicating that torque reduction is not allowed. The PCM will typically set a DTC and the EBCM will set this DTC.
Diagnostic Aids
This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS system.

Step
Action
Value(s)
Yes
No
Schematic Reference: Antilock Brake System Schematics
1
Did you perform the ABS Diagnostic System Check?
--
Go to Diagnostic System Check - Engine Controls in Engine Controls - 2.2L or Diagnostic System Check - Engine Controls in Engine Controls - 2.4L
Go to Diagnostic System Check - ABS

Install a scan tool.
Does the scan tool power up?
Go to Step 2
Go to Scan Tool Does Not Power Up in Data Link Communications
2
Turn ON the ignition, with the engine OFF.
Attempt to establish communication with the following control modules:
• Body control module (BCM)
• Electronic brake control module (EBCM)
• Instrument panel cluster (IPC)
• Powertrain control module (PCM)
Does the scan tool communicate with all control modules?

Do you have a up scale scan tool ? One that will communicate with the above modules ? If not your best bet would be to take your vehicle to a qualified repair shop .

C1440 Pressure Transducer Input Circuit Failure YES
C1440 (ABS only) Pressure Transducer Input Circuit Failure ABS Module Go To Pinpoint Test P .
Normal Operation The brake pressure switch provides an additional speed control deactivation if the brake pedal position (BPP) switch fails. When the brake pedal is pressed, 1700 kPa (246 psi) of brake fluid pressure in the brake master cylinder opens the brake pressure switch, removing B+ voltage to the speed control servo electric clutch.

Possible Causes
• circuit 10 (LG) open
• circuit 307 (BK/YE) open, short to power
• ABS module
• brake pressure switch
• speed control deactivator switch

PINPOINT TEST P: DTC C1440 (ABS ONLY) - PRESSURE TRANSDUCER SIGNAL FAULT CAUTION: Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
Test Step Result / Action to Take P1 VERIFY THE DTC

• Connect the diagnostic tool.
• Key in ON position.
• Clear DTC C1440. Road test the vehicle. Repeat the self-test.
• Does DTC C1440 repeat?

Yes
GO to P2 .

No
The system is OK at this time. P2 MONITOR THE BRAKE PRESSURE SWITCH PID FOR CLOSED POSITION

• Enter the following diagnostic mode on the diagnostic tool: ABS Module PID.
• Monitor the powertrain control module (PCM) brake pressure switch PID.
• With foot off the brake pedal, does the PID read closed?

Yes
GO to P3 .

No
GO to P4 . P3 MONITOR THE BRAKE PRESSURE SWITCH PID FOR OPEN POSITION

• Enter the following diagnostic mode on the diagnostic tool: ABS Module PID.
• Monitor the PCM brake pressure switch PID.
• While pressing the brake pedal, does the PID read open?

Yes
GO to P9

No
GO to P7 . P4 CHECK THE CIRCUIT 10 (LG/RD) FOR AN OPEN

• Key in OFF position.
• Disconnect: Speed Control Deactivator Switch C1025.
• Key in ON position.
• Measure the voltage between the brake pressure switch C1025-2, circuit 10 (LG/RD), harness side and ground.
• Is the voltage greater than 10 volts?

Yes
GO to P5 .

No
REPAIR the circuit. CLEAR the DTCs and REPEAT the self-test. P5 CHECK THE BRAKE PRESSURE SWITCH

• Key in OFF position.
• Measure the resistance across the brake pressure switch pins, component side.
• Is the resistance less than 5 ohms?

Yes
GO to P6 .

No
INSTALL a new speed control deactivator switch. REFER to Section 310-03 . CLEAR the DTCs. REPEAT the self-test. P6 CHECK CIRCUIT 307 (BK/YE) FOR AN OPEN

• Connect: Speed Control Deactivator Switch C1025.
• Disconnect: ABS Module C155.
• Measure the voltage between the ABS module C155-40, circuit 307 (BK/YE). harness side and ground.
• Is the voltage greater than 10 volts?

Yes
GO to P9

No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. P7 CHECK CIRCUIT 307 (BK/YE) FOR A SHORT TO POWER

• Key in OFF position.
• Disconnect: Brake Pressure Switch C1025.
• Key in ON position.
• Measure the voltage between the ABS module C155-40, circuit 307 (BK/YE), harness side and ground.
• Is any voltage present?

Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

No
GO to P8 . P8 CHECK BRAKE PRESSURE SWITCH

• Start the engine.
• Measure the resistance between the brake pressure switch C1025 pin 1, component side and the brake pressure switch C1025 pin 2, component side while firmly pressing the brake pedal.
• Is the resistance greater than 10,000 ohms?

Yes
GO to P9 .

No
INSTALL a new speed control deactivator switch. REFER to Section 310-03 . CLEAR the DTCs. REPEAT the self-test. P9 CHECK FOR CORRECT ABS MODULE OPERATION

• Disconnect all ABS connectors.
• Check for:
  • corrosion
  • pushed-out pins
• Connect all ABS connectors and make sure they seat correctly.
• Operate the system and verify the concern is still present.
• Is the concern still present?

Yes
INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module in this section. TEST the system for normal operation.

No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

have vehicle checked for trouble codes any autozone or parts store most will check it for free .You should than have an idea what is still wrong. If you feel this was helpfull please leave good feed Back

If the car hasn't gone into "limp home mode" then you should be fine to drive it but go easy on the brakes as there won;t be any ABS to help assist with heavy braking.

DTC U1040 indicates that the ABS module is not capable
of sending its state of health message. ( and this makes the ABS Light not flash ) check connections on the Module ...all fuses ...

Possable causes :
Open ABS fuse
Open battery circuit
Open ground circuit
Open serial data circuit
Short to ground in power circuit
ECU malfunction

I found a code chart at another web site.U1040 indicates no serial data communication with ABS module.I checked for wake up signal,it was there.I checked ground connection,it was good.I checked for B+ at module with DVOM and had battery voltage at both pins.I then load tested both B+ terminals and found the circuit was faulty.I went to the 30 amp ABS fuse and did a voltage drop test .I found the female connectors that the fuse plugged in to did not make good connection with the fuse.I bent the fuse pins outward and reinstalled.The ABS module came back on line.This bike has less than 2500 miles on it and this connection is already faulty.Is there a way to look up TSB'S for harley?.Bending the fuse pins is only a temperary fix.If there is no TSB for this problem I'm going to wire in a ATO fuse instead of the mini that Harley uses.The ABS motor draw on every start up appears to be excessive for that mini fuse connector.

I would say someone has disconnected it rather than fix it.
You might find a missing fuse or relay that powers the ABS module, or the module may be unplugged. It could have been removed too.

Sounds like a bad ABS control module is at least part of your problem. The symptoms are usually and ABS and TRACS light intermittent or constand and eventually your speedometer works intermittently or totally quits. This guy rebuilds/upgrades them for about $140. New ones run over $800. http://home.earthlink.net/~vicrocha/Volvo_Parts/Volvo_ABS_removal.htm

I would pull the fuse for the ABS hydraulic pump and then put it back in and see what happens. Don't ever recall a pump running. Dealer may need to hook up scan tool for diagnostic fault codes, DTCs.



Principles of Operation
The ABS control module receives wheel speed readings from both front wheel speed sensors and the rear differential speed sensor, and processes this information to determine if an ABS event is necessary. The wheel speed sensor electrically senses each tooth of the ABS sensor indicators as it passes through the wheel speed sensor's magnetic field.
The ABS control module continuously monitors and compares the rotational speed of each wheel speed sensor indicator and, when it detects an impending wheel lock, modulates brake pressure to the appropriate brake caliper(s). This is accomplished by triggering the hydraulic control unit (HCU) to open and close the appropriate solenoid valves. Once the affected wheel returns to normal speed, the ABS control module returns the solenoid valves to their normal position, and normal (base) braking resumes.
The ABS control module is self-monitoring. When the ignition switch is turned to the RUN position, the ABS control module will do a preliminary electrical check, and at approximately 20 km/h (12 mph), the pump motor is turned on for approximately one-half second. Any malfunction of the ABS system will cause the ABS to shut off; normal power assisted braking, however, remains.
Inspection and Verification — Scan Tool Communications Check

1. Verify the customer concern by carrying out the Drive Cycle Test.

1. Visually inspect for obvious signs of mechanical and electrical damage.

Visual Inspection Chart Mechanical Electrical

• Parking brake cable
• Tire pressure
• Tire size or mismatched tires

• Blown fuse
• Central junction box (CJB):
  • fuse 23 (10A)
• Battery junction box
  • fuse 102 (50A)
• Connectors or connections
• Ground integrity
• Harness routing
• Wire chafing
• Circuitry open/shorted

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Anti-Lock Control The four-wheel anti-lock brake system (4WABS) consists of the following components:

• Anti-lock brake control module (2C265)
• Front anti-lock brake sensor (2C204)
• Front anti-lock brake sensor indicator (2C182)
• Hydraulic control unit (2C219)
• Rear anti-lock brake sensor (2C190)
• Rear anti-lock brake sensor indicator (2C189)
• Yellow ABS warning indicator