How to check crankshaft sensor of Hyundai Trajet(2.7).

How to checkt cranshaft sensor of Hyundai Trajet 2.7 V6 DOHC  ENGINE  UNLEAD EOBD  P0335 Crankshaft Position Sensor Circuit Malfunction.

Study Component Location

 

Study General Description

Study The Crankshaft Position Sensor (CKPS) is a hall effect type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft;Study there are 58 slots in the target wheel where one is longer than the others. When Study the slot in the wheel aligns with the sensor,Study the sensor voltage outputs low. When Study the metal (tooth) in the wheel aligns with the Study sensor, the Study sensor voltage outputs high. Study During one crankshaft rotation there are 58 rectangular signals and one longer signal. Study The ECM calculates engine RPM by using the sensor’ s signal and controls the injection duration and the ignition timing. Study Using the signal differences caused by the longer slot,Study the ECM identifies which cylinder is at top dead center.

Study DTC Description

study The ECM sets DTC P0335 when the number of crankshaft teeth during one revolution is incorrect or crankshaft signal is missing while camshaft signal is detected.

Study DTC Detecting Condition

Item
Detecting Condition
Possible Cause

DTC Strategy
● Study Check Crankshaft Signal Switching
● Study Open or short in signal, ground or power supply circuit
● Study Contact resistance in connectors
● Study Damage to the connecting flange/flywheel
● Study Misadjust crankshaft and camshaft pulley position
● Study Faulty CKP sensor

Case1)
Enable Conditions
● Study Before Synchronization

Threshold Value
● Study Valid Crankshaft Teeth not yet detected with Camshaft Signal
● Study Can not detect TDC with valid Crankshaft Teeth and Camshaft Signal

Diagnosis Time
● Study 4 revolutions

Case2)
Enable Conditions
● Study After Synchronization

Threshold Value
● Study Number of Crankshaft Teeth is not correct

Diagnosis Time
● Study 5 revolutions

Signal Waveform

Terminal and Connector Inspection

1.Study Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and Study mechanical or chemical damage.

2.Study Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

3.Study Has a problem been found?

YES

1)Study Repair as necessary and go to "Verification of Vehicle Repair" Study procedure

NO

1)StudyGo to "Power Circuit Inspection" procedure

Power Supply Circuit Inspection

1.Ignition "OFF" Study

2.Disconnect CKP sensor connector Study

3.Ignition "ON" & Engine "OFF" Study

4.Study Measure voltage between terminal 1 of the sensor harness connector and chassis ground

A.Study Specification : Approx. B+

5.Is voltage within the specification of Study?

YES

1)Study Go to "Ground Circuit Inspection" procedure

NO

1)Study Check for a open in the power supply circuit between the main relay and the crankshaft position sensor,

2)Study Especially check for open or blown 10A sensor fuse refer to "Component Circuit"

3)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure

Ground Circuit inspection

1.Study Ignition "OFF"

2.Study Measure resistance between terminal 3 of the sensor harness connector and chassis ground

A.Study Specification : Approx. 0Ω

3.Study Is resistance within the specification? YES

1)Study Go to "Signal Circuit Inspection" procedure

NO

1)Study Check for an open or short to battery in the ground circuit.

2)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure

Signal Circuit Inspection

Check for Open in Signal Harness

1.Study Disconnect ECM connector

2.Study Measure resistance between terminals 2 of the sensor harness connector and 8 of the ECM harness connector

A.Study Specification : Approx. 0Ω

3.Study Is resistance within the specification?

YES

1)Study Go to next step as below

NO

1)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Check for Short to Ground in Signal Harness

1.StudyMeasure resistance between terminal 2 of the sensor harness connector and chassis ground

A.Study Specification : Infinite

2.Study Is resistance within the specification?

YES

1)Study Go to next step as below

NO

1)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Check for Short to Power in Signal Harness

1.Study Ignition "ON" & Engine "OFF"

2.Study Measure voltage between terminal 2 of the sensor harness connector and chassis ground

A.Study Specification : Approx. 0V

3.Study Is voltage within the specification?

YES

1)Study Go to "Component Inspection" procedure.

NO

1)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure.

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How to repair CKP(Crankshaft Position Sensor)of Hyundai Accent.

How to repair or check crankshaft position sensor or crank timing sensor.

Study Model: Hyundai Accent

Study Year Model: 2009

Study Fuel: Gasoline

Study Displacement:1400cc

Study Subject: How to repair CKP (Crankshaft Position Sensor or Crank Timing Sensor).

 

2009  G 1.4 DOHC  Engine  Unleaded GEN  P0336 Crankshaft Position Sensor A Circuit Range/Performance

Component Location

General Description

A Study Crankshaft Position Sensor (CKPS) is a magnetic type sensor that Study generates voltage using a sensor and a target wheel mounted on the crankshaft; Study there are 58 slots in the target wheel where one is longer than the others. When Study the slot in the wheel aligns with the sensor, the sensor voltage outputs low. When Study the metal (tooth) in the wheel aligns with the sensor, the sensor voltage outputs high. Study During one crankshaft rotation there are 58 rectangular signals and one longer signal. The PCM Study calculates engine RPM by using the sensor’ s signal and controls the injection duration and the ignition timing. Study Using the signal differences caused by the longer slot, the PCM identifies which cylinder is at top dead center. 

Study DTC Description

If frequency Study counter of the lost reference gap is over 2000, PCM sets DTC P0336.

DTC Study Detecting Condition

Study Item
Detecting Condition
Possible Cause

DTC Strategy
● Reference mark check
● Poor connection
● Open or short in signal circuit
● CKPS
● PCM

Study Enable Conditions
● No back turn of engine detected

Study Threshold Value
● Frequency counter of the lost reference gap > 2000

Study Diagnostic Time
● Continuous

Study MIL ON Condition
● 2 driving cycle  

Study Signal Waveform

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How to Check and Study Sensor CMP Santa Fe

 

How to Check and Study CMP Sensor of Santa Fe

2003  G 2.0 DOHC  Engine  Unleaded GEN  P0340 Camshaft Position Sensor Circuit Malfunction

Study Terminal and Connector Inspection

1.Many malfunctions Study in the electrical system are caused by poor harness(s) and terminals.Study Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.Study Check the following conditions:

(1)Study Check for damaged harness and terminals: contact resistance, oxidation, bent or broken terminals.

(2)Study Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection

Study Use a suitable male pin to ensure that contact in sockets is good. The pin should remain in position when pulled gently.

3.Study Has a problem been found?

YES

1)Study Repair as necessary and go to "Verification of Vehicle Repair" procedure

NO

1)Go to "Power Circuit Inspection" procedure Study .

Power Supply Circuit Inspection

Check Power to CMPS

1.IG KEY : OFF , Engine : OFF of this Study

2.Disconnect CMPS connectorC01 of this Study.

3.IG KEY : ON , Engine : OFF

4.This Study Measure voltage between terminal 3 of the CMPS harness connectorC01 and chassis ground.

A.Study [Specification] Approx.B+

5.Study Is the voltage near the specified value?

YES

1)Go to "Ground Circuit Inspection" procedure Study.

NO

1)Study to Repair open or short to ground in harness, Go to "Verification of Vehicle Repair" procedure Study.

Ground Circuit inspection

Check for Open in Harness

1.IG KEY : OFF , Engine : OFF

2.Disconnect CMPS connectorC01 and ECM connector of this Study

3.Study Measure resistance between terminal 1 of the CMPS harness connectorC01 and chassis ground.

A.Study [Specification] Approx.0Ω

4.Is the resistance near the specified value of this Study?

YES

1)Go to "Signal Circuit Inspection" procedure Study.

NO

1)Repair open in harness, Go to "Verification of Vehicle Repair" procedure Study.

Signal Circuit Inspection

Check for Open in Harness

1.IG KEY : OFF , Engine : OFF

2.Disconnect CMPS connectorC01 and ECM connector Study.

3.This Study Measure resistance between terminal 2 of the CMPS harness connectorC01 and 18 of the ECM harness connectorC22-4.

A.Study [Specification] Approx.0Ω

4.Is the resistance near the specified value Study?

YES

1)Go to "Check for Short to Ground in Harness study"

NO

1)Repair open in harness, Go to "Verification of Vehicle Repair" procedure Study.

Check for Short to Ground in Harness

1.IG KEY : OFF , Engine : OFF

2.Disconnect CMPS connectorC01

3.Study Measure resistance between terminal 2 of the CMPS harness connectorC01 and chassis ground.

A.Study [Specification] infinite(∞Ω)

4.Does the resistance indicate open?

YES

1)Go to "Check for Short to Battery in Harness"

NO

1)Repair short to chassis ground in harness, Go to "Verification of Vehicle Repair" procedure.

Check for Short to Battery in Harness

1.IG KEY : OFF , Engine : OFF

2.Disconnect CMPS connectorC01.

3.IG KEY : ON , Engine : OFF

4.Study Measure voltage between terminal 2 of the CMPS harness connectorC01 and chassis ground.

A.Study [Specification] Approx.0V

5.Is the voltage near the specified value of this Study?

YES

1)Go to "Component Inspection" procedure Study.

NO

1)Repair short to battery in harness, Go to "Verification of Vehicle Repair" procedure Study.

More Info Study & Please Leave comments

more info:

1. Tech 1
2. Tech 2

How to Study or Check the Santa Fe (SM) trouble Code.

How to Study or Check the Santa Fe(SM) Trouble Code.

2003  G 2.0 DOHC  Engine  Unleaded GEN  P0340 Camshaft Position Sensor Circuit Malfunction

Study Component Location

Study Description

1. General Description

The Camshaft Position Sensor Study(CMPS) is a sensor that detects the compression TDC Study of the NO. 1 cylinder. The Study CMPS consists of a hall type sensor and a target on the end of the intake camshaft. When Study the target triggers the sensor, the Study sensor voltage is 5V. If not, the sensor voltage is 0V. Study These CMPS signal is sent to the ECM and the ECM uses the CMPS signal for synchronizing the firing of sequential fuel injectors.

2. DTC Description

If there is no change of signal, Study the ECM judged as a fault and DTC is set.

Study DTC Detecting Condition

Study Item
Detecting Condition
Possible Cause

Study DTC Strategy
● Change in output voltage(ΔVcam) is monitored
● Poor connection
● Open or short in CMPS
● Defective CMPS
● Defective ECM

Study Enable Conditions
● Engine running condition

Study Threshold value
● ΔVcam = 0

Study Diagnostic Time
● Continuous

Study MIL ON condition
● 2 driving cycles

Study Schematic Diagram

Study Signal Waveform

Study The given data is the normal waveform of the Crankshaft Position Sensor(CKPS) and Camshaft Position Sensor(CMPS) at idle. Study The ECM controls the injection timing and the ignition Study timing by using these signals. Study Generally CKPS signal is used to detect the piston’s position and CMPS signal is used to detect the Top Dead Center of each cylinder.

more info case Study & please leave comment

Source 1) techatblog.com
           2) troubleencounter.com

How to STUDY and repair engine hard starting.

How to Study and repair engine hard starting.

Model: Hyundai Study Santa Fe(SM)

Fuel: Diesel

Year Model: 2003 

Displacement:2000cc

Study subject: Engine hard starting.

1) Condition of Study:

1. The Study is engine hard starting.hesitation and poor acceleration.

2) Cause of Study.

1. Cause of Study is one tooth of the timing belt is jump over.

3) Study Diagnosis.

1. Scan tool check
   
   = Diagnosis trouble code Study.
   = Study code P0340- Camshaft position sensor circuit malfunction.
   
2. Inspect the wiring harness for camshaft position sensor to Study.
   
   = Study check point: Harness side after disconnecting connector.
   =Study check condition: Ignition '”ON”
   = Study power source line: 12 V (Study normal condition).
   = Study ground line:The Study lamp is turned “ON” Using test lamp, Study normal condition.
   = Study signal line: 5 V (Study normal condition)
3. Study inspect the waveform of camshaft position sensor – Study normal wave form.
4. Study check the wave form of the crankshaft position sensor and camshaft position sensor simultaneously.
   =  The Study is Incorrect position of the crankshaft position sensor.
5. The Study is check the engine timing belt.
   = The timing mark is mismatch (Study one tooth is jumped) .

4) Study Repair Guide

1. The Study display on scan.
   = It is necessary tool: “Study CMP sensor malfunction”
   =The Study it is necessary to inspect the timing align including CMP sensor and CKP sensor by oscilloscope meter.
2. This Study problem is occurred by engine hesitation.The Study poor acceleration due to the mismatching of timing belt.
3. Study below is rate problem, But Study refer to this.
   = Timing changes due to the broken dowel pin of camshaft sprocket.

more info Study & please leave comments

How to repair auto trans. shock shifting

How to repair auto trans. shock shifting.

Model: Hyundai Accent (MC)

Year Model: 2010

Fuel: Gasoline

Displacement: 1400cc

Subject: Automatic transmission shock shifting

1) Condition

1. Shock is occurs “P” to “R” from “N” to “D”

2) Cause

1. Due to valve body harness disconnected.
2. Due to TPS #2 wire disconnected.

3) Diagnosis

1. Scan tool check
   = Trouble code is set inrelation to valve body solenoid.
   = P0122 –Throttle/Pedal Position Sensor/Switch A Circuit Low Input.
2. Check Scan tool monitoring from GDS
   =TPS is abnormal Reading.
3. Visually check for the TPS Disconnect the socket.
   =Pin # 2 disconnected.
4. Visually check for the harness from valve body
   =The socket was also disconnected.

4) Repair Parts.

1. Repair for the harness disconnected from TPS socket and Harness valve body.

2010  G 1.4 DOHC  Engine  Unleaded EOBD = P0122 Throttle/Pedal Position Sensor/Switch A Circuit Low Input

Component Location

General Description

The Throttle Position Sensor (TPS) is mounted on the throttle body and detects the opening angle of the throttle plate.

The TPS has a variable resistor (potentiometer) whose characteristic is the resistance changing according to the throttle angle. During acceleration, the TPS resistance between the reference 5V and the signal terminal decreases and output voltage increases; during deceleration, the TPS resistance increases and TPS output voltage decreases.

The ECM supplies a reference 5V to the TPS and the output voltage increases directly with the opening of the throttle valve. The TPS output voltage will vary from 0.2~0.8V at closed throttle to 4.3~4.8V at wide-open throttle.

The ECM determines operating conditions such as idle (closed throttle), part load, acceleration/deceleration, and wide-open throttle from the TPS. Also The ECM uses the Mass Air Flow Sensor (MAFS) or Manifold Absolute Pressure Sensor (MAPS) signal along with the TPS signal to adjust fuel injection duration and ignition timing.

DTC Description

If the sensor input voltage is lower than the minimum threshold value during 0.08 sec under normal driving condition, PCM sets DTC P0122.

DTC Detecting Condition

Item
Detecting Condition
Possible Cause

DTC Strategy
● Signal check, low
● Poor connection
● Open or short to ground in power circuit
● Short to ground in signal circuit
● TPS
● ECM

Enable Conditions
● Engine speed  600 rpm

Threshold Value
● Calculated signal from sensor voltage  3.1%

Diagnostic Time
● 0.08 sec

MIL ON Condition
● 2 driving cycle

Specification

ITEM
Specification

TPS Resistance (kΩ)
2kΩ ± 20% (20°C)

Schematic Diagram

Signal Waveform

2010 > G 1.4 DOHC > Engine > Unleaded EOBD > P0122 Throttle/Pedal Position Sensor/Switch A Circuit Low Input

Terminal and Connector Inspection

1.

Many malfunctions in the electrical system are caused by poor harness and terminals.

Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

3.

Has a problem been found?

YES

1)

Repair as necessary and go to "Verification of Vehicle Repair" procedure.

NO

1)

Go to "Power circuit inspection" procedure.

Power Supply Circuit Inspection

1.

Key "OFF".

2.

Disconnect TPS connector.

3.

Key "ON".

4.

Measure the voltage between terminal 2 of TPS harness connector and chassis ground.

A.

Specification : Approx. 5V

5.

Is the measured voltage within specifications ?

YES

1)

Go to "Signal circuit inspection" procedure

NO

1)

Check for Open or Short to ground in TPS circuit. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

Signal Circuit Inspection

1.

Key "OFF".

2.

Disconnect TPS connector.

3.

Key "ON".

4.

Measure the voltage between terminal 1 of TPS harness connector and chassis ground.

A.

Specification : Approx. 5V

5.

Is the measured voltage within specification ?

YES

1)

Go to "Component inspection" procedure.

NO

1)

Repair Short to ground in signal circuit and go to "Verification of Vehicle Repair" procedure.

 

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How to check ESP(Electronic Stability Program)

2009 > G 3.3 DOHC > Brake System

ESP circuit DIAGRAM(1)

ESP circuit DIAGRAM(2)

ESP circuit DIAGRAM(3)

ESP HECU CONNECTOR INPUT / OUTPUT

Connector Terminal
Specifications
Conditions

No
Description

1
Ground(Pump)
Current range : Min-10 A
Max-20 ~ 39 A
Always

4
Ground(Valve,ECU)
Current range : Min-2.5 A
Max-5 ~ 15 A
Always

2
Supply voltage(Pump)
Battery voltage
Always

3
Supply voltage(Valve)

26
Wheel sensor voltage(FL)
Battery voltage
IG ON

9
Wheel sensor voltage(FR)

6
Wheel sensor voltage(RL)

8
Wheel sensor voltage(RR)

5
Wheel sensor signal(FL)
Voltage(High) : 0.89~1.26 V
Voltage(Low) : 0.44~0.63 V
RUNNING

10
Wheel sensor signal(FR)

27
Wheel sensor signal(RL)

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