How to repair sometimes engine not starting and no key indicator

How to repair sometimes engine not starting and no key indicator.

Model: All latest model of Hyundai it happen due to immobilizer system  built in

P1676 Immobilizer-Smartra Message Error

Study Component Location

Study General Description

1.Study The sequences of the PIN code storage are as follows.

(1)Study Input the PIN code into the scanner when key teaching process.

The scanner transmits the Encrypted Code to the ECM after converting the PIN code into Encrypted Code.

(2)Study When the ECM gets the firtst key learning command, it transmits the SMARTRA3 learnt command and Encrypted Code to the SMARTRA3

(3)Study If the SMARTRA3 statue is virgin/neutral, the SMARTRA3 stores Encrypted Code in EEPROM and transmits the success message of the Encrypted Code storage.

(If the SMARTRA3 is learnt, the SMARTRA3 compares Encrypted Code transmitted by the ECM with Encrypted Code stored in EEPROM and transmits the (in)correct Encrypted Code message to ECM)

(4)Study If the SMARTRA3 is learnted normally or the Encrypted Code of the registered SMARTRA3 is same as the ECM, the ECM begins operation the Transponder Learning.

(5)Study If the learning of the first transponder, the ECM stores the Encrypted Code in its EEPROM and converts state into learnt state.

2.STUDY The SMARTRA3 learning :

(1)Study starts with EMS request of PIN from scanner through the key teaching procedure.

(2)Study is possible in case that the status of SMARTAR is “virgin” or “neutral “.

(3)Study In case that the SMARTRA3 is “learnt”, the SMARTRA3 will transmits the information if PIN inputted from scanner is same as the PIN in SMARTRA3.

(4)Study is possible regardless of key status.

3.Study The sequence of the SMARTRA3 confirms are as follows.

(1)Study After communication with the SMARTRA3, the ECM transmits the random number with requirement of the TP ID information.

(2)Study The SMARTRA3 encryptes the random number and transmits the result(Encrypted Random Number) to the ECM with TP ID information.

(3)Study The ECM compares the result transmitted from the SMARTRA3 with the result calculated by ECM.

And If result are coincided with each other; the ECS concludes the valid confirmation of the SMARTRA3.

DTC Description

The ECM sets DTC P1676 if there's any fault in message from SMARTRA to ECU

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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.

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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.

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