Abnormal Windshield Wiper – Ground Wiring

Model Accent (LC)
Year Model: 2004
Displacement: 1300cc
Fuel: Gasoline
Mileage:126487 km
Subject: Abnormal Windshield Wiper – Ground Wiring
1) Trouble Condition:

1. The windshield operates when operating the rear defogger and the air conditioner.
2. The head lamp and the tail lamp fail to operate.
3. The door is lock by it self when operating the wiper motor switch.

2) Trouble Cause:

1. Abnormal ground point of the main wiring G06.
2. Abnormal tightening of the G06 ground point 10 mm bolt.

3) Diagnosis:

1. Visually inspect after removing the right bulb – Normal
2. Inspect the power supply and ground condition.
   = Inspect the power supply line(+) using test lamp: Normal
3. Inspect the dimmer switch.
   = Inspect the contact condition of switch using multi meter: Normal.
   = Inspect the power w/c is inputted up to switch.
   = Inspect the ground line  using test lamp =  Abnormal.
4. Inspect the  wire from M10-2 connector to G06 ground point = Normal
5. Inspect the Go6 ground point = Poor contact.

4) Repair Guide:

1. Repair wiring.

Hyundai Getz(TB) Impossible to Shift ATM(3rd Hold)=pulse Generator B

Model: Getz	Year model: 2004	Mileage:78524km
Displacement: 1500cc	Fuel: Gasoline	T/A :Auto
N code:Impossible to shift(3rd hold)	C code: Flaw in material	System: Automatic trans. Control System

Subject: Impossible to shift ATM hold to 3rd = pulse Generator

1)  Trouble Condition:

1. Impossible to shift auto transmission(3rd hold).
2. Shock occurence when shifting gear N—>D,N—>R.

2) Trouble Cause:

• Poor pulse Generator(B).

3) Trouble Diagnosis: 

1. Scan tool check
   = Diagnostic Trouble code.

DTC code

P0722

Pulse Generator B (output Speed Sensor)

• = Perform a driving test after erasing the DTC code.
• = The DTC code is Displayed again.

     2   Inspect the oil in Auto transmission – Normal.

         = Transaxle fluid: Genuine Diamond ATF SP-III

     3   Stall test = Normal .
          = Stall speed: 2200 – 2800 rpm
          = Place the selector lever in the “R” position.
     4   Inspect the resistance in pulse generator and wiring contact.

4) Trouble Repair Guide:

1. Normal current data G scan of pulse Generator of A & B
   = PG-A(Input speed)      1532 rpm
   = PG-B(output speed)     968 rpm
2. Pulse Generator circuit.
3. Measure the resistance of output sensor
   = Channel 1 prove (+): Input sensor C02 terminal 4 signal line.
   = Channel 1 prove (-): Input sensor C02 terminal 3 sensor ground.
   =Specification: 245 + or – 30 ohms(Standard 20*c

C02 Terminal.

1. Input speed sensor (+)
2. Input speed sensor (-)
3. Output speed sensor (+)
4. Output speed sensor (-)

Field Trouble,ATM 3rd Hold-TPS(throttle Position Sensor)Hyundai Sonata (NF)

Model: Sonata (NF)	Year model: 2006	Mileage: 94313km
Displacement: 2400cc	Fuel: Gasoline	T/A Auto
N code: Impossible to shift(3rd hold)	C code: poor contact & Short,open circuit.	System: Automatic Transaxle Control system

Subject:ATM 3rd Hold-TPS(Throttle Position Sensor

1) Trouble Condition:

1. Impossible to shift intermittently.
2. Normal shift in Sport mode.

2) Trouble Cause:

1. Abnormal TPS

3) Trouble Diagnosis:

1. Check output speed sensor = Normal
2. Check the TPS: the value between ECM and TCM are different.
   = ECM (Engine Control Module) = 2 percent
   = TCM (Transmission Control Module) = 50 percent
   = The condition of the TPS wiring was Normal
   = The current data for the engine(Before repairing)
   = Current Data after repairing(After repairing)

1275              0	o2 sensor	max:935       130 mv min:50
1913             0	Map sensor	max:217       210 mmHg min:202
100           0.0	Throttle position sensor	max:2.0       2.0 percent min:2.0
5126.1            0.0	Throttle pos. voltage	max:332       332.0 mv min:332.0
8000            0	RPM	max:1047       1013 rpm min:948
1275                      0	02 sensor	max:960       855 mV min:95
1913           0	Map sensor	max:217       210mmHg min:210
100             0	Throttle position sensor	max:0.0       0.0 min:0.0
5126.1            0.0	TPS voltage	max:351.5       351.5 mV min:351.5
8000              0	RPM	max:828       799 rpm min: 778
100              0	TPSensor	max:31.0       12.5 percent min:12.2
800             0	RPM	max:5018       868 rpm min:783

4) Repair Guide:

• Repalce the TPS
• MORE STUDY

Hyundai Santa Fe(SM)/Cluster Tail Lamp On-Roof Wiring.

model: Santa Fe(SM)	Year model: 2006	mileage: 73874km
Displacement: 2000cc	Fuel: Diesel	T/A: Auto
N code:Inoperative	C code: poor contact & short, open circuit.	System: Main harness

Subject: Cluster Tail Lamp On – Roof wiring

1) Condition:

1. The tail lamp in instrument cluster illuminates key ‘ On’ position when the tail lamp is switch OFF.

2) Cause:

1. A short circuit between the roof wiring and the vehicle body.

3) Diagnosis:

1. check the tail lamp bulb – Trouble not found.
2. Check the tail wiring circuit,
   = A short circuit near the overhead console.
   = Interference between roof wiring( Tail lamp circuit) and vehicle body.

4) Repair Guide:

1. Check roof wiring.
2. Repair the shorted roof wiring harness.
3. MORE STUDY 

Sonata (FL) 2.4/Inoperative ATM shift lever = Brake switch.

Model: Sonata FL	Year model: 2009	Mileage: 40257km
Displacement: 24000cc	Fuel: Gasoline	T/A auto

Subject: Inoperative ATM shift lever = Brake switch.

1) Condition:

1. Automatic transaxle gear shift lever doesn’t move from ‘ P ‘ and ‘ R ‘ range
2. Brake light doiesn’t operate.

2) Cause:

1. Malfunction of brake pedal switch.

3) Diagnosis:

1. Check the gear shift locking system: System does not operate.
2. Check the brake pedal switch – Problem exists.
   = The switch stuck and the wires are separated from switch.
   = Gear shift locking system can not operate because the brake switch signal is always ‘ OFF ‘ condition.
   = When gear shift locking system fails to operate, the shift lever cannot move from ‘ P ‘ range.
3. MORE STUDY

4) Repair Guide:

• Replace the brake pedal switch.

Engine stalling in”D” range after starting the engine – torque converter/Sonata NF

model: Sonata NF	year model: 2005	mileage:124674 km
Displacement: 2400cc	Fuel: Gasoline	T/A Auto

Subject: Engine stalling in “D” range after starting the engine – torque converter.

1) Condition:

• Engine stalling when the auto transmission is in “D” range after starting the engine

2) Cause:

• Sticking of torque converter

3) Diagnosis:

1. Inspect the auto transmission oil = Normal
2. Scantool check = No trouble code.
3. Stall test – the speed is not increased more than 2500 rpm.
   = Standard value ( Stall speed: 2000 – 2500 rpm).
4. Check the ignition coil and plug – Normal.
5. Inspect the waveform of CKP = Normal.
6. Inspect the coil pump and torque converter.
   =The torque converter has been interfered with oil pump housing.

4) Repair Guide:

1. Engine stall when shifting
   = If the engine stall when the selector lever is shifted from N to D or R range while the engine is Idling, the cause probably a malfunction of the engine system, torque converter clutch solenoid, valve body or torque converter( torque converter clutch malfunction).
2. Probably cause
   = Malfunction of engine system.
   = Malfunction of torque converter solenoid.
   = Malfunction of the valve body.
   = Malfunction of torque converter.
   ( Malfunction of torque converter clutch.

Engine system check:

1. Check the control system, ignition , fuel system and main system =====>Repair  , replace.
2. ok?
3. Replace the torque converter clutch solenoid
4. Replace the torque converter.

• Torque Converter  stall test  Judgment results.

1. Stall speed too high in booth R and D range.
   = Low line pressure.
   = Low and reverse brake slippage.
2. Stall speed is too high in D range only.
   = Reverse clutch slippage.
3. Stall speed is too high in R range only.
   = Reverse slippage.
4. Stall speed too low in D and R ranges.
   = Malfunction of torque converter.
   = Insufficient engine output. 
5. MORE STUDY

Centennial Equus field case

model: Equus	model year: 2010	mileage: 1000
Diaplacement: 4600cc	Fuel: Gasoline	A/T Auto

Subject: Engine not Cranking(Starter clicking and impossible to crank the Engine)-Loosed connection

1) Condition:

• Engine not Cranking (Starter only clicking and impossible to crank the engine.

2)Cause:

1. Battery (+) from front Battery jump start cable loosed.(Engine compartment)

3) Diagnosis:

1. Inspect the Battery using battery tester = Good battery.
2. Inspect the Battery terminal (REAR)=ok
3. Inspect battery terminal from engine compartment jump start.= one terminal loosed.

4) Repair Guide:

• Retightening the terminal.

Tiburon Trouble/Excessive Exhaust

Model: Tiburon	Model year: 2004-6	Mileage: 80,300
Displacement:2700cc	Fuel: Gasoline	T/A all

Subject: Excessive Exhaust Gas due to the malfunction of 02 sensor

1) Condition:

• Abnormal Engine exhaust gas.

2) Cause:

1. Engine ECM does not get signal from 02 sensor.
2. ECM control wiring connector (c133-2 input side)is fitted in wrong direction.(this the socket connector of ECM)

3) Diagnosis

1. Scan tool check.
   = Diagnostic trouble code. P0560 - System voltage -malfunction,P1167 – 02s (B2) cont. – adaption. , P1166 – 02s (B1) cont.-adaption.
   =check a current data for fr. 02s-B1 4.9 v= out of Specification. continually on high Voltage (4.9V).
   =the normal signal is Fluctuates signal.
   =visual inspection for wiring connector. ECM control wiring connector (C133-2) A and B are fitted in exchange position.

4) Repair Guide

• Refit the ECM connector in the correct way.

Field Case Trouble Shooting of Hyundai Cars

VIHICLE NAME	JOB ORDER	POSSIBLE CAUSE	REMEDY
SONATA FL 2.4 model 2009	Auto transmission delay shifting during driving	Trouble code: P0880 TCM power input signal.Check w/ ECU, input & output sensor.(the same)	Replace valve body harness.
Azera 3.3 model 2008	A/T shock shifting specially w/ A/C on,Check Engine indicator always on,RPM fluctuating & cruise control not working.	Trouble code: 0501.TPS, ECT,ECU,wheel speed sensor,vehicle speed sensor.	Vehicle speed sensor
Azera 3.3 model 2009	Check engine indicator always ON and no acceleration	Trouble code: P2106,P1295,P2135.ECU, APS,ESP module.	Throttle body assembly.
Sonata FL 2.4 model:2009	Check engine indicator always on (night time)	ECU, Electrical circuit.	Put an ordinary xenon bulb directly to head light.
Centenial LZ 3.5 model 2005	Engine stalling at Idle at thesame time shock shifting during driving.	no trouble code: Fuel pump,Spark plug, high tension wire,ignition coil.	Ignition coil
Genesis BH 3.8 model 2009	Underneath grinding noise during driving at speed of 70 to 80 km/hr.	Wheel hub bearing, propeller center bearing.Differential.	Differential oil.
Veracruz 3.8 model 2009	Check engine indicator always on at the same time no acceleration.	TPS,APS,ECU,ESP.	throttle body assembly
Sonata FL 2.4 model 2009	Shock shifting during driving specially on deceleration before traffic light.	A/T valve body, ground terminal,sensor input & output.	ECU malfunction
Elantra HD 1.6 model 2009	A/T not shifting and stick on 1st gear.	ECU,output or input sensor.	output sensor
Azera TG 3.3 model 2008	During deceleration at stop light ESP off at the same time no acceleration.	ESP module,ECU,APS	Engine compartment fuse box,signal of APS w/ white color to throttle body circuit loss.
Trajet 2.0 model 2006	hazard and signal light not functioning.	fuse box,electrical circuit,	Engine compartment fuse box:power fuse 21 busted.
Matrix 1.6 model 2008	A/T delay w/ shock shifting from 2nd to 3rd gear.	ECU ,valve body,A/T oil.Input & output sensor.	Input & out put sensor
Azera TG 3.8 model 2008	Engine cut off during driving	Electrical circuit loss, fuel pump.	Fuel pump motor
Veracruz	ENGINE jerking specially on driving w/ A/C on	no trouble code from Scan tool.fuel pump,ignition coil,Spark plug. Electrical circuit loss.	Spark plug spark leaking more study

Azera Field Case trouble/Engine RPM up & down

MODEL:AZERA	YEAR MODEL:2009	MILLEAGE:33400
DISPLACEMENT: 3800	FUEL : GASOLINE	T/A : AUTO TRANS.

SUBJECT: Engine RPM up & down on R & Drive position.

1)Condition:

• Engine RPM up & down on R & Drive position

2)Cause:

• PCV valve

3)Diagnosis:

1. Check Scan tool = no trouble code.
2. Check for Air leaking= PCV valve malfunction

4) repair Guide.

• Replace PCV valve

Santa Fe Field Case Trouble ABS/TCS warning lamp

Model : Santa Fe	Model year: 2004	Mileage: 35243 km
Displacement: 2700 cc	Fuel : Gasoline	T/A All
Group: Brake system	System:ABS (Anti brake system	Component: Front wheel speed sensor

Subject: ABS/TCS warning lamp “ON”

1) Condition:

1. During driving ABS/TCS illuminates
2. The vehicle has been repaired 2 times but same symptom reoccurred.

2) Cause:

• A short circuit between the wiring and the passenger compartment junction box bracket w/c is apart by 20 cm from EM03 connector.

3) Diagnosis":

1. Scan tool check
   =Diagnostic trouble code,( c1203 FR wheel speed sensor open or short).DTC cannot be arased
2. Inspect the wheel speed sensor unit ( Resistance 1.2 kilo ohms.
   -Inspect the sensor power that inputted in HECU.(Hydraulic Electronic Control Unit.)
   -The separated connector condition: 5Volt is normal.
   -Connect the connector, if normal the output power 2.5 v but the problem vehicles output power is 0 volt. (Short).
3. When checking the resistance between the wheel speed sensor vehicle body the resistance is changed intermittently.
4. Detach the middle connector EM 03
   -Calculate the resistance in sensor and HECU input.
   -Sensor resistance :normal.
   -HECU input resistance :Intermittent short circuit.
   ( check w/ the wiring shaken).
5. Take the wiring cover off and inspect the short circuit.

4) Repair Guide:

1. This problem is caused because of intermittent short circuit in wheel speed sensor.After checking DCT using Hi-Scan,it is possible to erase the DTC.
   when the vehicle stop driving,the DTC does not appear again but if the warning lamp illuminates during driving, the same DTC appears.When similar (EMS,ATM, other system.) happens,check w/ the wiring shaken.
2. The warning lamp is illuminated only after driving when there are problems due to the wheel speed sensor air gap or foreign materials in tone wheel and sometimes high speed dring. Check if the warning lamp illuminates when driving after erasing the DTC or right after when there is a DTC related to wheel speed sensor(Driving test is necessary)

Field trouble shooting

This are the case on automobile I think it can help you to easily recognize or gives you idea to trouble shoot the problem.
Ignition system:

Symptom	Suspect area	Remedy
Engine will not start or is hard to start(Crank Ok)	=Ignition lock switch. =Ignition coil. =Spark plug. =Ignition wiring or disconnected.	=Inspect ignition lock switch,or replace as required. =Inspect ignition coil or replace as required. =Inspect spark plug or replace as required. =Repair wiring or replace as required.
Rough idle or stalls	=Ignition wiring. =Ignition coil.	=Repair wiring or replace as required =Inspect ignition coil or replace as required.
Engine hesitates/poor acceleration	=Spark plugs and spark plug cable . =Ignition wiring.	=Inspect spark plug/ cable or replace as required. =Repair wiring or replace as required.
Poor acceleration	=Spark plug and spark plug cable	=Inspect spark plug/ cable or replace as required.

Charging System:

Symptom	Suspect area	Remedy
Charging warning indicator does not light with ignition switch “ON” and engine off.	=Fuse blown.. =Light burned out. =Wiring connection loose. =Electronic voltage regulator.	=Check fuses. =Replace light. =Tighten loose connection. =Replace voltage regulator.
Charging warning indicator does not go out with engine running. (Battery requires frequent recharging.	=Drive belt loose or worn. =Battery cable loose / corroded or worn. =Electronic voltage regulator.	=Adjust belt tension or replace belt. =Tighten loose  connection. =Replace voltage regulator.
Overcharge	=Electronic voltage regulator. =Voltage sensing wire.	=Replace voltage regulator. =Repair or replace wiring.
Discharge	=Drive belt loose or worn. =Wiring connection loose or shirt circuit. =Electronic voltage regulator or alternator. =poor grounding. =Worn battery.	=Adjust belt tension or replace belt tension. =Inspect wiring connection, repair or replace wiring. =Replace voltage regulator or alternator. =Inspect ground or repair. =Replace battery.

Starting System:

Symptom	Suspect area	Remedy
Engine will not crank	=Battery charge low. =Battery cables loose, corroded or worn out. =Transaxle range switch(vehicle w/ automatic transmission only) =Fuse blown. =Starter motor faulty. =Ignition switch faulty.	=charge or replace battery. =Repair or replace cables. =Refer to TR group Automatic transaxle. =Replace fuses. =Replace. =Replace.
Engine crank slowly	=Battery charge low. =Battery cables loose, worn out. =Starter motor faulty.	=Recharge or replace battery. =Repair or replace cables. =Replace.
Starter keeps running.	=Starter motor. =Ignition switch.	=Replace. =Replace.
Starter spins but engine will not crank.	=Short in wiring. =Pinion gear teeth broken or starter motor. =Ring gear teeth broken.	=Repair wiring. =Replace. =Replace flywheel or torque converter. more stdy