Category: How to

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How to Solve Caterpillar C9 Engine Coolant Temperature Voltage High?

Caterpillar C9 Engine

It is troubleshooting guide for Caterpillar C9 engine coolant temperature voltage high trouble code PID 110-3.

Caterpillar C9 Engine

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The Engine Control Module (ECM) detects the following conditions:

*The signal voltage from the engine coolant temperature sensor is greater than 4.9 VDC for more than eight seconds.

The engine has been running for more than seven minutes.

The ECM has been powered for at least two seconds.

 

The troubleshooting procedures for the diagnostic codes of each temperature sensor are identical.The temperature sensors are passive sensors that have two terminals.The passive sensors do not require supply voltage from the Engine Control Module(ECM). The sensor return is connected to temmal2 of the sensor connector while the sensor signal is provided at terminal 1 of the sensor connector. The signal from terminal 1 of each sensor is supplied to the appropriate terminal at the ECM connector.

 

Pull-up Voltage:

The ECM continuously outputs a pull-up voltage on the circuit for the sensor signal wire.The ECM uses this pull-up voltage in order to detect an open in the signal circuit.When the ECM detects the presence of a voltage that is above a threshold on the the signal circuit, the ECM will generate an open circuit diagnostic code (3) for the sensor.

 

If the sensor is disconnected at the sensor connector,the presence of pull-up voltage at he sensor connector indicates that the wires from the sensor connector to the ECM are not open or shorted to around.If the sensor is disconnected at the sensor connector,the absence of pull-up voltage at the sensor connector indicates an open in the signal wire or a short to ground.If the sensors disconnected at the sensor connector and the voltage at the sensor connector is different from pull-up voltage, the signal wire is shorted to another wire in the harness

 

This code could be related to the Ambient air temperator sensor, engine coolant temperature sensor, or the intake manifold temperature sensor.

 

Probable Causes:

1 ECM Connection

2 Sensor failure

3 Sensor harness/connection failure

4 ECM Failure

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Kubota L4701 Tractor Clutch Housing and Mid Case Separating

Kubota L4701 Tractor Clutch Housing and Mid Case Separating-1

Here is the instruction show you guide on how to separate clutch housing and mid for Kubota L4701 tractor.

 

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Outer Components

1 Remove the mounting bolts and the steering support (1).

2 Disconnect the differential lock pedal.

3 Remove the step (2) and the main wiring harness.

 

Suction Pipe and Hydraulic Block

1 Remove the suction pipe (5).

2 Remove the hydraulic block (3).

3 Remove 3P delivery pipe (1).

4 Remove the brake connecting rod R.H. (4) and L.H.. (When reassembling)

Apply grease to the O-rings.

Kubota L4701 Tractor Clutch Housing and Mid Case Separating-1

 

Separating Clutch Housing Case from Mid Case

1 Loosen and remove the screws and the nuts securing the clutch housing case (1) to mid case (2).

2 Separate the clutch housing case (1) from the mid case (2). (When reassembling)

Replace the gasket with a new one.

Kubota L4701 Tractor Clutch Housing and Mid Case Separating-2

 

Separating Mid Case from Transmission Case

1 Loosen and remove screws and nuts securing mid case (1) to transmission case (2).

2 Separate mid case from transmission case (2).

(When reassembling)

Apply liquid gasket (Three Bond 1208D or equivalent) to joint face of mid case and transmission case after eliminate water, oil and stuck liquid gasket.

Kubota L4701 Tractor Clutch Housing and Mid Case Separating-3

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Deutz EMR3 Engine Crankschaft Speed Sensor ECU NO Signal Solution

Deutz EMR3 engine control unit ArHt1.

Here is the instruction show you guide on how to solve Deutz EMR3 engine trouble code 77 / 190 / EngMCrS1 Crankschaft speed sensor: the ECU receives no signal or the signal is defective.

Deutz EMR3 engine control unit ArHt1.

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Error Codes

DEUTZ-Errorcode: 77

BlinkCode (short-long-short): 2 – 1 – 2

SPN: 190

 

Possible FMI:

12: Defective component

8: unusual frequency, pulse or period.

  1. Errormode not identifiable
  2. Errormode not identifiable

 

Error Detection

Error lamp shows permanent light. Entry in errormemory.

 

Possible Reason for Error

Speed signal from crankshaft defectiveiv or missing, transmitter defective, connection cable demaged, sensor wheel installed inaccurately

 

Take actions for error repair

Check cabling, check camschaft sensor and if necessary replace it, check configuration of sensor wheel, check connection cable and if necessary repair or replace it, check the position of sensor

wheel and if necessary correct it other error properties

 

System reaction:

Warning, power reduction via second topcurve

 

Behaviour error lamp: permanent light

Selfhealing: yes

Signal Priority: 4

Measurement @ errortime: 0

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Doosan Stage V Engine U1003 Engine shut off request through CAN (EBC1)

Doosan DMS-5 FAD1006 Check Connection State to ECU Solution

Here is the instruction show you guide on how to solve Doosan Stage V excavator engine shut off request through CAN EBC1 error.

 

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Fault Code:

U1003:Engine shut off request through CAN (EBC1)

 

Overview

“E” SPNFMI

 

Reason:

External shut off request by Electronic Brake Controller 1 message.

 

Effect:

Alarm only Engine stop immediately

 

Component Location

Engine shut off request (Emergency stop) switch location and connector is dependent on

machine application.

 

Condition for Running Diagnostic

Continuously checked in every sample time

 

Condition for Setting the Fault Code

External shut off request by Electronic Brake Controller 1 message.

 

Condition for Clearing the Fault Code

This item is not a fault and indicates that the VCU has issued an emergency stop request.

 

Check List

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JCB JS140/205/215 Excavator C1335-11 Power Mode Solenoid Short Circuit to Ground

This instruction show you guide on how to solve JCB JS140 JS205 JS215 C1335-11 trouble code power mode solenoid short circuit to ground.

 

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Possible Cause:

1 Faulty solenoid coil.

2 Power mode solenoid wire harness short circuited.

 

Diagnosis:

1 Check the spool lock solenoid coil resistance by multimeter. Resistance values shall be 37Ω.

2 Check the wire harness connectivity between circuit no 4005 & 6053 of spool lock solenoid wire harness by multimeter after disconnection of spool lock solenoid from wire harness. Refer below photograph.

JCB JS140/205/215 Excavator C1335-11 Power Mode Solenoid Short Circuit to Ground

 

Corrective Action:

1 Replace faulty solenoid coil.

2 Replace the faulty wire harness.

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Perkins 400A 400D Industrial Engine Crankcase Breather Remove and Install

Perkins 400A 400D Industrial Engine Crankcase Breather Remove and Install

Here is the instruction show you guide on how to remove and install crankcase breather for Perkins 400A and 400D industrial engine.

 

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Removal Procedure

1 Remove bolts (1) and remove the assembly of cover (2), spring (3) and diaphragm (4). Note the

orientation of cover (2).

Remove spring (3) and diaphragm (4) from cover (2).

Perkins 400A 400D Industrial Engine Crankcase Breather Remove and Install

3 Remove adapter (5) and joint (6) from valve mechanism cover (7).

Note: Make a temporary mark in order to show the orientation of the adapter for installation.

 

4 If necessary, follow Steps 4.a through 4.c in order to remove the gauze for the breather.

Remove valve mechanism cover (7).

 

Remove screws (9) and carefully remove plate (10).

Remove gauze (8) from valve mechanism cover (7).

 

Installation Procedure

2

1 Clean all parts and inspect all parts. Replace any parts that are worn or damaged. Ensure that the cavity for the breather in the valve mechanism cover is clean. Ensure that vent hole in adapter (5) and the vent hole in cover (2) are free from restriction.

 

2 If necessary, follow Steps 2.a through 2.d in order to install the gauze for the breather.

Install gauze (8) to valve mechanism cover (7).

Position plate (10) on valve mechanism cover (7) and install screws (9).

Tighten screws (9) to a torque of 1.5 N·m (13 lb in).

Install valve mechanism cover (7). Refer to

 

Disassembly and Assembly, “Valve Mechanism Cover – Remove and Install” for the correct procedure.

3 Position a new joint (6) on the valve mechanism cover and install adapter (5).

Note: Ensure the correct orientation of the adapter.

The vent hole should face upward.

 

4 Install diaphragm (4) and spring (3) to cover (2).

5 Position the assembly of cover (2), spring (3) and diaphragm (4) onto valve mechanism cover (7).

Note: Ensure the correct orientation of the cover.

6 Install bolts (1). Use Tooling (A) in order to tighten bolts to a torque of 3 N·m (27 lb in).

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Mack and Volvo EPA 13 to GHG17 Engines SCR Regeneration by JPRO

Mack and Volvo EPA 13 to GHG17 enginesSCR Regeneration by JPRO

The SCR Regeneration test should be performed to remove DEF crystals that cannot be removed by normal engine operation.Here is the instruction show you guide on how to use JPRO Diagnostic with DLA+ 2.0 to do SCR regeneration for Mack and Volvo EPA12 to GHG17 engine.

 

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This is like the DPF Regeneration except that the temperatures are higher, and the operation may take approximately 30 – 90 minutes to complete.

1 Select SCR Regeneration and press Enter or press Start Button.

2 If not previously shown, the Aftertreatment Instructions are automatically displayed to provide aid in diagnosing issues with aftertreatment systems. When read, select the Close button on the window.

3 The SCR Regeneration dialog displays.

Mack and Volvo EPA 13 to GHG17 enginesSCR Regeneration by JPRO

4 Select the Regen Status tab to see the details for the Inhibit and DPF status.

5 Select the Start button to begin the SCR Regeneration process.

6 Select the Graph & Data tab see data items related to the test. Values for selected data items will be graphed as the test progresses. Click the checkbox next to any data item to add or remove it from the graph.

7 Select the Stop button at any time to stop the test early.

8 Once the test completes, press the Exit button to return to the test selection dialog.

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How to Bleed the Brake System for Yale G807 Forklift Truck

This instruction show you guide on how to bleed the brake system for Yale G807 forklift truck.

 

Hyster Yale iFak Diagnostic Kit

2025 Yale PC Service Tool 5.5

 

CAUTION

The brake system uses Dexron III (same as used in the transaxle). Use of other fluids can damage the brake system.

When the brake system is operating properly, the brake pedal will have back pressure that will stop the pedal before it can be pressed to the end of its mechanical travel limit. A brake system that has air present may have some back pressure but not enough to stop the pedal before reaching its mechanical travel limit. The pedal may feel soft and inconsistent (spongy) and must be bled before operating the lift truck.

NOTE:Bleeding air from the brake system requires two technicians. One technician must sit in the seat and operate the brake pedal while the other opens and closes the brake bleed valve located on the transaxle housing

 

To bleed air from the brake system:

1 Remove the floor plates and check that the master cylinder reservoir is full of oil.

2 One technician must sit in the seat and repeatedly press and release (pump) the brake pedal to increase the back pressure. The brake pedal may become harder to press as this occurs.

3 When back pressure seems to be at the maximum,the technician must press and hold the pedal as far as it will go.

4 The second technician must slowly loosen the bleed valve on one of the transaxle housings between the wheel and the frame. Air and oil should bubble from the valve until the pedal is pressed to its mechanical travel limit.

5 The pedal should be held in this position while the valve is retightened.

6 Repeat Step 2 through Step 5 until oil with no air (bubbles) flows from the valve. Check the oil level in the master cylinder every cycle and fill reservoir as necessary.

7 Perform Step 2 through Step 5 on the other transaxle until all air has been bled from the system.

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How to Solve Deutz EMR3 74 / 923 Engine Power Out Error?

This instruction show you guide on how to solve Deutz EMR3 Engine power out error 74/923 error.

Deutz EMR3 engine control unit ArHt1.

Error Description ENGINE POWER OUT

Output with PWM signal of the engine power: the current drain measured by ECU is out of the target range or the maximum permissible temperature of the ECU component to control the

output is exceeded.

 

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Error Codes

DEUTZ-Errorcode: 74

BlinkCode (short-long-short): 5 – 5 – 5

SPN: 923

Possible FMI:

3: Voltage to high or short circuit to +Ubatt

4: Voltage to low or short circuit to -Ubatt

5: current to low or broken wire

2: data stream is defective

 

Error Detection

Error lamp shows permanent light. Entry in error memory.

 

Possible reason for error

Engine Power output: cable break or short circuit, output defective, connection cable damaged

 

Take actions for error repair

Check cabling, sensor defect, check sensor and if necessary replace it, check connection cable and if necessary repair or replace it

 

Other Error Properties

System reaction: Warning, shutoff output

Behaviour error lamp: permanent light

Selfhealing: no

Signal Priority: 1

Measurement @ errortime: shut off value

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ISUZU 4JJ1 3.0L Engine Intake Air Flow IAF Control Circuit Open P02E0 Error Solution

hitachi isuzu 4jj1

Here is the instruction show you guide on how to repair ISUZU 4JJ1 N-Series 3.0L engine intake air flow IAF valve control circuit open P02E0.

hitachi isuzu 4jj1

 

DESCRIPTION:

The ECM controls the intake air flow (IAF) valve opening based on the engine running condition and by controlling  the lAF valve motor. The lAF valve position is detected by the position sensor and relayed to the ECM.lf the ECM detects an open circuit on the motor circuits, the DTC will set.

 

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CONDITION FOR RUNNING THE DTC:

1 The battery voltage is between 10 and 16 volts.

2 The desired lAF valve position is more than 18.5%.

 

CONDITION FOR SETTING DTC:

The ECM detects an open circuit on the lAF valve motor control circuit for 1 second.

 

ACTION TAKEN WHEN THE DTC SETS:

1 The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.2. 2 The ECM records the operating conditions at the time the diagnostic falls, The ECM stores this information in the Freeze Frame/ Falure Records

 

The ECM Apply Defaulted Warning Action And Fail-Safe Controls:1. MIL: ON

2 DPF Regeneration Control Inhibition

3 Cruise Control lnhibition

 

CONDITION FOR CLEARING THE DTC:

1 The ECM turns OFF the MIL after 3 consecutive driving cycles when the diagnostic runs and does not fail.

2 A current DTC clears when the diagnostic runs and passes.

3 A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported after the ECM turns OFF the Ml.

4 Use the diagnostic tool to clear the MIL and the DTC.

 

DIAGNOSTIC AIDS:

lf an intermittent condition is suspected, refer to the Intermittent Conditions.