Trouble code abs dtc 61 open relay CircuitAny ideas about where to start looking after the missing signal ?? and how ?

Doesn't have a relay , controlled by a computer . SJB - smart junction box . Your best bet , take it to a qualified repair shop. You have no idea of the complexity of these systems .
Principles of Operation
The smart junction box (SJB) monitors the multifunction switch position by sending multiple voltage reference signals to the multifunction switch. When the multifunction switch is in the LH or RH TURN positions, or the hazard lamp switch is pressed, that input signal is routed to ground.
When the SJB receives a request for a turn signal or hazard lamps, the SJB supplies voltage to the appropriate turn lamps.
The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both the front and rear turn lamps operate correctly. If an individual turn signal lamp is inoperative, the SJB flashes the remaining turn lamp approximately 160 times per minute.

Qualified repair shop would hook up a factory or professional scanner an check for DTC'S - diagnostic trouble code's . Not OBD2 engine code's , not the samething .

Diagnostic Trouble Code (DTC) Charts
Smart Junction Box (SJB) (DTC Chart DTC Description Action B2071 Hazard Switch Signal Short to Ground Go To Pinpoint Test N . B2281 Right Turn Switch Short to Ground Go To Pinpoint Test L . B2282 Left Turn Switch Short to Ground Go To Pinpoint Test L . B2A27 Right Front Turn Lamp Circuit Open Go To Pinpoint Test M . B2A28 Right Front Turn Lamp Circuit Short to Ground Go To Pinpoint Test M . B2A29 Left Front Turn Lamp Circuit Open Go To Pinpoint Test M . B2A2A Left Front Turn Lamp Circuit Short to Ground Go To Pinpoint Test M . All other DTCs - REFER to Section 419-10 .

Have it checked for DTC'S -diagnostic trouble codes . That will tell you what's up . Dealer or someother qualified repair shop .
DTC P0532: Air Conditioning A/C Refrigerant Pressure Sensor Circuit Low Voltage
DTC P0533: Air Conditioning A/C Refrigerant Pressure Sensor Circuit High Voltage
DTC P0645: A/C Clutch Relay Control Circuit
Circuit System Description
When the A/C switch is pressed, the HVAC control module sends a serial data message to the ECM. This input will request the engine control module (ECM) to ground the A/C compressor clutch relay control circuit, which will switch the A/C CMPRSR CLUTCH relay on. With the relay contacts closed, battery voltage is supplied to the A/C compressor clutch assembly.

DTC B0228 02 : Recirculate Position Feedback Circuit Short to Ground
DTC B0228 05 : Recirculate Position Feedback Circuit Short to Battery or Open
DTC B0228 61 : Recirculate Position Circuit Actuator Stuck
DTC B0413 02 : Temperature Control 1 Feedback Circuit Short to Ground
DTC B0413 05 : Temperature Control 1 Feedback Circuit Short to Battery or Open
DTC B0413 61 : Temperature Control 1 Feedback Circuit Actuator Stuck Open
DTC B0423 02 : Temperature Control 2 Feedback Circuit Short to Ground
DTC B0423 05 : Temperature Control 2 Feedback Circuit Short to Battery or Open
DTC B0423 61 : Temperature Control 2 Circuit Actuator Stuck

Have it checked for DTC'S - diagnostic trouble codes . ABS and brake light on , codes are stored in the EBCM - electronic brake control module . Could be ABS relay , control module , pump motor and the only way to find out what the problem is , have checked for DTC'S

With The ABS light on the system is disabled (not working ) This doesn't affect the base brakes . There are DTC'S - diagnostic trouble codes stored in the ABS electronic control module . You would need to have the ABS system checked for codes ,then diagnosed for that code . Could be a wheel speed sensor or the wiring or a module .

The ABS EBCM anti-lock brake module is failing causing problems with the ABS pump running constantly, also will drain your battery.

1. Remove the ABS fuse to prevent ABS motor burn out.
2. You can still drive your vehicle with the module removed.
3. We recommend covering the exposed surface of the hydraulic control unit with aluminum foil to keep out water and dirt.

Common Failures:

• ABS Pump Always Running
• Codes: C0265, C0267, C0268
• Pump Motor Circuit trouble code
• Power Relay trouble code
• Valve Relay Trouble code
• Dump Valves (solenoids) trouble codes
• No Communication
• Intermediate power loss

http://www.myairbags.com/dtc-code-c0265-abs-ebcm-light/

Having the vehicle checked for DTC'S - diagnostic trouble code's would be a good first step . ABS light on codes are stored . Suggest you take your vehicle to a qualified repair shop that has the knowledge an testing equipment to diagnose the problem properly .
Anti-Lock Brake System (ABS)
The 4-wheel, 4-channel anti-lock brake system (ABS) consists of the following components:

• ABS module
• Front wheel speed sensor
• Front wheel speed sensor ring (integral to the front wheel bearing)
• Hydraulic control unit (HCU)
• Rear wheel speed sensor
• Rear wheel speed sensor ring (integral to the rear halfshaft)
• Yellow ABS warning indicator
• As you can see here , it can set numerous
• DTC'S Why guess an replace parts that won't fix the problem .
• Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1342 ECU is Faulted ABS Module NOTE: If other DTCs are present, REPAIR them before installing a new component.
  CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new module. REFER to Anti-Lock Brake System (ABS) Module in this section. REPEAT the self-test. B1483 Brake Pedal Input Circuit Failure ABS Module Go To Pinpoint Test B . B1676 Battery Pack Voltage Out of Range ABS Module Go To Pinpoint Test C . B2477 Module Configuration Failure ABS Module CONFIGURE the ABS module. REFER to Section 418-01 . CLEAR the DTCs. REPEAT the self-test. If DTC B2477 is retrieved again, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . REPEAT the self-test. B2734 Pedal Travel Sensor Supply Error ABS Module Go To Pinpoint Test M . B2736 Pedal Travel Sensor Circuit Fault ABS Module Go To Pinpoint Test M . B2737 Pedal Travel Sensor Jammed Error ABS Module Go To Pinpoint Test M . B2738 Pedal Travel Sensor Velocity Error ABS Module Go To Pinpoint Test M . B2740 Pedal Travel Sensor Spike Error ABS Module Go To Pinpoint Test M . B2741 Sensor Cluster Defective ABS Module FOLLOW the diagnostic tool directions for the calibration procedure. B2900 VIN Mismatch ABS Module VERIFY that the module has the correct as-built data.
  CHECK for correct powertrain control module (PCM) and ABS module configurations using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to Section 418-01 for the PCM. CLEAR the DTC. REPEAT the self-test. C1095 ABS Hydraulic Pump Motor Circuit Failure ABS Module Go To Pinpoint Test D . C1145 Speed Wheel Sensor RF Input Circuit Failure ABS Module Go To Pinpoint Test E . C1155 Speed Wheel Sensor LF Input Circuit Failure ABS Module Go To Pinpoint Test E . C1165 Speed Wheel Sensor RR Input Circuit Failure ABS Module Go To Pinpoint Test E . C1175 Speed Wheel Sensor LR Input Circuit Failure ABS Module Go To Pinpoint Test E . C1233 Speed Wheel LF Input Signal Missing ABS Module Go To Pinpoint Test F . C1234 Speed Wheel RF Input Signal Missing ABS Module Go To Pinpoint Test F . C1235 Speed Wheel RR Input Signal Missing ABS Module Go To Pinpoint Test F . C1236 Speed Wheel LR Input Signal Missing ABS Module Go To Pinpoint Test F . C1277 Steering Wheel Angle 1 and 2 Circuit Failure ABS Module Go To Pinpoint Test G . C1278 Steering Wheel Angle 1 and 2 Signal Faulted ABS Module Go To Pinpoint Test G . C1279 Yaw Rate Sensor Circuit Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1280 Yaw Rate Sensor Signal Fault (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1281 Lateral Accelerometer Circuit Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1282 Lateral Accelerometer Signal Fault (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1285 Booster Solenoid Circuit Failure ABS Module Go To Pinpoint Test I . C1287 Booster Pedal Force Switch Circuit Failure ABS Module Go To Pinpoint Test J . C1288 Pressure Sensor Main/Primary Input Circuit Failure ABS Module Go To Pinpoint Test K . C1440 (with stability assist) Pressure Sensor Main/Primary Signal Faulted ABS Module Go To Pinpoint Test K . C1516 Roll Rate Sensor Signal Fault (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1517 Roll Rate Sensor Circuit Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C1730 Reference Voltage Out of Range (+5V) ABS Module Go To Pinpoint Test L . C1805 Mismatched PCM and/or ABS-TC Module ABS Module CHECK for correct PCM and ABS module configuration using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to Section 303-01 for the PCM. CLEAR the DTC. REPEAT the self-test. C1963 Stability Control Inhibit Warning ABS Module This DTC is for information only. GO to the Principles of Operation. CLEAR the DTC. REPEAT the self-test. C1991 Module Calibration Failure ABS Module Follow the diagnostic tool directions for the calibration procedure. C1996 Active Yaw and/or Roll Control Disabled ABS Module This DTC can be set if the ABS module system is activated for 15 seconds of continuous operation. CHECK for any major chassis modifications, gross suspension misalignment or other items that can alter the vehicle tracking dynamics. CLEAR the DTC. REPEAT the self-test. C1998 Module Calibration Not Complete ABS Module Go To Pinpoint Test O . C2769 (ABS only) Longitudinal Acceleration Sensor Electrical Failure ABS Module INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module in this section. CLEAR the DTCs. REPEAT the self-test. C2769 (ABS with stability assist) Longitudinal Acceleration Sensor Electrical Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C2770 (ABS only) Longitudinal Acceleration Sensor Plausibility Failure ABS Module INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module in this section. CLEAR the DTCs. REPEAT the self-test. C2770 (ABS with stability assist) Longitudinal Acceleration Sensor Plausibility Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C2777 Sensor Cluster Bus Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . C2778 Sensor Cluster Power Supply Failure (Sensor Cluster Fault) ABS Module Go To Pinpoint Test H . U1900 CAN Communication Bus Fault-Receive Error Network Fault REFER to Section 418-00 . U1901 CAN Network #2 Communication Bus Fault-Receive Error Network Fault Go To Pinpoint Test H . U2023 Fault Received from External Node Instrument Cluster REFER to Section 418-00 .

B1596 ABS Module Service Continuous Codes NOTE: If other DTCs are present, REPAIR them before installing a new component.
TURN the ignition switch to the OFF position and wait at least 30 seconds. Turn the ignition switch to the ON position. REPEAT the ABS self-test. If any DTCs are retrieved, REFER to the Anti-Lock Brake System (ABS) Module Diagnostic Code (DTC) Index. If no DTCs are retrieved, CARRY OUT a drive test above 15 km/h (9 mph), then REFER to the symptom chart.
Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index DTCs DTC Caused By Description Action B1342 ABS Module ECU is Defective INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module in this section. B1484 ABS Module Brake Pedal Input Open Circuit Go To Pinpoint Test D . B1596 ABS Module Service Continuous Codes NOTE: If other DTCs are present, REPAIR them before installing a new component.
TURN the ignition switch to the OFF position and wait at least 30 seconds. Turn the ignition switch to the ON position. REPEAT the ABS self-test. If any DTCs are retrieved, REFER to the Anti-Lock Brake System (ABS) Module Diagnostic Code (DTC) Index. If no DTCs are retrieved, CARRY OUT a drive test above 15 km/h (9 mph), then REFER to the symptom chart. B1676 ABS Module Battery Voltage Out of Range Go To Pinpoint Test E . C1145 ABS Module Speed Wheel Sensor RF Input Circuit Failure Go To Pinpoint Test B . C1155 ABS Module Speed Wheel Sensor LF Input Circuit Failure Go To Pinpoint Test B . C1165 ABS Module Speed Wheel Sensor RR Input Circuit Failure Go To Pinpoint Test B . C1175 ABS Module Speed Wheel Sensor LR Input Circuit Failure Go To Pinpoint Test B . C1222 ABS Module Speed Wheel Mismatch Make sure the tires are the same size and correctly inflated. INSPECT the wheel speed sensor rings. CLEAR the DTC. TEST drive the vehicle. REPEAT the self-test. C1266 ABS Module ABS Valve Power Relay Circuit Failure Go To Pinpoint Test K . C1296 ABS Module Wheel Speed LF Signal Fault Go To Pinpoint Test C . C1297 ABS Module Wheel Speed RF Signal Fault Go To Pinpoint Test C . C1298 ABS Module Wheel Speed RR Signal Fault Go To Pinpoint Test C . C1299 ABS Module Wheel Speed LR Signal Fault Go To Pinpoint Test C . C1300 ABS Module ABS Hydraulic Pump Motor Circuit Failure Go To Pinpoint Test A . C1805 ABS Module Mismatched PCM and ABS Modules Do Not Match CHECK the part numbers. INSTALL the correct module. C2775 ABS Module TC ON/OFF Switch Stuck Failure Go To Pinpoint Test H . U0073 CAN Bus Control Module Communication Bus Off REFER to Section 418-00 . U1900 CAN Bus CAN communication Bus Fault - Receive error REFER to Section 418-00 . U2023 CAN Bus Fault received from External Node REFER to Section 418-00 .

This trouble code could be 3 different possibilities...

Code 18 can be any of the following:

DTC 18 ABS Enable Relay Coil Circuit Shorted To Battery
DTC 18 Injector Circuit Malfuntion
DTC 18 Discriminating Sensor Interconnect Open (Supplemental Inflatable Restraints)

Hope this helps...

Probably a bad switch.

Here are all the possible problems which can turn on your ABS light.

C1101 Battery voltage over volt: 18V or more ○ ○ BR - 69
C1102 Battery voltage low volt: 9.5V or less ○ ○ BR - 69
C1200 FL wheel sensor: open or short to ground ○ ○ BR - 66
C1201 - Range/Performance: speed jump or damaged exciter ○ ○ BR - 67
C1202 - No signal: air-gap error or wrong excite ○ ○ BR - 68
C1203 FR wheel sensor: open or short to ground ○ ○ BR - 66
C1204 - Range/Performance: speed jump or damaged exciter ○ ○ BR - 67
C1205 - No signal excite: air-gap error or wrong excite ○ ○ BR - 68
C1206 RL wheel sensor: open or short to ground ○ ○ BR - 66
C1207 - Range/Performance: speed jump or damaged exciter ○ ○ BR - 67
C1208 - No signal excite: air-gap error or wrong excite ○ ○ BR - 68
C1209 RR wheel sensor: open or short to ground ○ ○ BR - 66
C1210 - Range/Performance: speed jump or damaged exciter ○ ○ BR - 67
C1211 No signal: air-gap error or wrong excite ○ ○ BR - 68
C1604 ECU hardware: ECU internal or valve failure ○ ○ BR - 70
C2112 Valve relay: valve relay or fuse failure ○ ○ BR - 70
C2402 Motor-Electrical: open or short to battery, motor relay, fuse or motor lock fail ○ ○ BR - 71
C1503 TCS switch failure δ ○
C1605 CAN Hardware failure δ ○ BR - 71
C1610 CAN Bus off failure δ ○ BR - 71
C1611 EMS Time-out failure δ ○ BR - 71
C1612 TCM Time-out failure δ ○ BR - 71
C1613 TCM Un-matching failure δ ○ BR - 71
C2227 Brake disc overheat δ ○
C1274 G-Sensor signal fail (only 4WD) ○ ○ BR - 72
C1275 G-Sensor open or short to ground (only 4WD) ○ ○ BR - 72
You'll need a scanner which is compatible with Hyundai's ABS system to retrieve any DTC's (Diagnostic Trouble Codes) stored in its computer. Any time the ABS light comes on, there's a DTC stored in its computer - that code will tell you where the problem exists. Then you can go from there.