Blog - Auto Machine Diagnosis EPC Download Installation Service

Posted on November 17, 2024November 13, 2024 by autoepccatalog

Perkins 400A 400D Water Pump Remove and Installation Guide

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

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Removal Procedure
Start By:
a Remove the fan. Refer to Disassembly and Assembly, “Fan – Remove and Install” for the
correct procedure.
b If necessary, remove the alternator. Refer to Disassembly and Assembly, “Alternator –
Remove and Install” for the correct procedure.

1 Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, “Cooling System Coolant – Drain” for more information.

2 Loosen hose clamp (10) and disconnect hose (11) from water pump (3).
3 Loosen hose clamp (2) and disconnect hose (1) from water pump (3).
4 Loosen hose clamps (4) and disconnect hose (5) from water pump (3) and the thermostat housing
5. Remove bolt (13) for alternator bracket (7).
Position the alternator bracket away from water pump (3).
Note: The alternator bracket on some engines is
secured by two bolts.
6 Remove bolts (8) and nut (9) from water pump (1).
Remove the water pump from the cylinder block.
Note: If necessary, gently tap the water pump with a soft faced hammer to loosen the water pump.

7 Remove gasket (12) (not shown).

Installation Procedure

1 Ensure that the gasket surfaces of the water pump and the cylinder block are clean and free from damage.

Correct orientation of the water pump to block gasket

2 Ensure that the bolt holes in Position (W) and stud (14) are clean and free from oil and coolant.
3. Install a new gasket (12) (not shown) over stud (14). Ensure that the gasket is correctly oriented.

Water pump bolts and nut tightening sequence
4 Apply Tooling (A) to the first two threads of bolts (8) and nut (9).
5 Install water pump (3).
6 Install bolts (8) and nut (9) hand tight. Ensure that gasket (12) (not shown) is correctly positioned.
7 Tighten bolts (8) and nut (9) to a torque of 5 N·m (44 lb in)

8 Tighten bolts (8) and nut (9) to a torque of 10 N·m (89 lb in)

9 Connect hose (1) to water pump (3). Securely tighten hose clamp (2).
10 Connect hose (5) to water pump (3). Securely tighten hose clamp (4).
11 Connect hose (11) to water pump (3). Securely tighten hose clamp (10).
12 Position alternator bracket (7) onto water pump (3). Loosely install bolt (13) to the alternator
bracket.
Note: The alternator bracket on some engines is secured by two bolts.
13 Fill the cooling system with coolant.

Posted on November 12, 2024November 5, 2024 by autoepccatalog

QSK60 G CM2358 Engine Voltage Above Normal or Shorted to High Source

Here is the instruction show you guide on how to repair post-oil filter pressure sensor circuit – voltage above normal or shorted to high source.

What You Need?

Cummings Insite 9.0.1

Cummings inline6 diagnostic adapter

Code:

Fault Code: 1377
PID: S151
SPN: 3549
FMI: 3/3
LAMP: Maintenance
SRT:

Reason:

High signal voltage detected at the oil filter outlet pressure circuit.

Effect:

None on performance.

Circuit Description

The engine control module (ECM) provides a 5 volt supply to the oil filter intake pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The oil filter intake pressure sensor provides a signal to the ECM on the oil filter intake pressure sensor signal circuit. This sensor signal voltage changes, based on the pressure before the oil filters. The ECM will detect a low signal voltage at operating conditions when the oil pressure may be slightly lower. The ECM will detect a high signal voltage during high engine speeds or operating conditions when the oil temperature is low.

Component Location

The post-filter oil pressure sensor is located between the oil filter and the oil cooler.

Conditions for Running the Diagnostics

This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.

Conditions for Setting the Fault Codes

The Engine Control Module (ECM) detected the engine oil filter intake pressure signal voltage was out of range high.

Action Taken When the Fault Code is Active

The ECM illuminates the white MAINTENANCE lamp or flashes the amber CHECK ENGINE lamp, indicating a maintenance condition, immediately after the diagnostic runs and fails.

Conditions for Clearing the Fault Code

To validate the repair, start the engine and let it idle for 1 minute.

The fault code status displayed by the recommended electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes.

The “Reset All Faults” command in the recommended electronic service tool or equivalent can be used to clear active and inactive faults.

Shop Talk

Possible causes of this fault code include:

Open return circuit in the harness, connectors, or sensor

Signal circuit shorted to sensor supply or battery voltage

Posted on November 7, 2024November 5, 2024 by autoepccatalog

Deutz EMR3 Engine Trouble Code 22 / 168 / BattCD Solution

Here is the instruction show you guide on how to repair trouble code 22 / 168 / BattCD for Deutz EMR3 engine.

Deutz EMR3 engine control unit ArHt1.

Preparations:

2023 Deutz Serdia2010

Deutz DECOM Diagnostic Kit

Error description BATTERY VOLTAGE
Battery voltage: the voltage measured by ECU is out of the target range

Error codes
DEUTZ-Error code: 22
Blink Code (short-long-short): 3 – 1 – 8
SPN: 168
possible FMI:
0: data valid, but above normal working area
1: data valid, but below normal working area
12. Errormode not identifiable
12. Errormode not identifiable

Error detection
Error lamp shows permanent light. Entry in error memory.

Possible reason for error
Voltage below target range, battery defective, too high power supply voltage, too high contact resistance, wiring damaged,energie system overloaded, parametering inaccurate, ECU defective

Take actions for error repair
Check LIMA?, ECU, cabling, contact resistance, safety fuses, too high load in energy system, check battery and if necessary replace it, check battery pole and if necessary clean it, check connection cable and if necessary repair or replace it, check volta

other error properties

System reaction: Warning, substitute value, dependent upon supply voltage (12V, 24V)
Behaviour error lamp: permanent light
Selfhealing: yes
Signal Priority: 3

Posted on November 3, 2024November 1, 2024 by autoepccatalog

FENDT 900 Vario COM III Transmission and Control Hydraulics Pressure Measuring Points

FENDT 900 Vario COM III Transmission and Control Hydraulics Pressure Measuring (7)

Here is the illustration show you pressure measuring points on FENDT 900 Vario COM III transmission and control hydraulics.

M14 Pressure,4WD clutch

M15 Pressure,differential lock

M16 Switching pressure,PTO 1000

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The measuring connections at the rear right and left of the cover plate on the rear axle housing may also be used for checking the rear PTO.

NOTE: Measuring connection M16 is present from chassis number 9XX/2X/3501.

1 PTO clutch (Measuring connection M12x1.5)

2 Lubrication pressure,rear axle (Measuring connection M10 x 1)

3 PTO control 540/750 (Measuring connection M10x1)

4 PTO control 1000 (Measuring connection M10 x1)

M1 System pressure

M2 Clutch pressure

Posted on October 29, 2024 by autoepccatalog

Detroit Diesel GHG17 Heavy Duty Mechanical Cylinder Compression Test

This instruction show you guide on how to perform mechanical cylinder compression test for Detroit Diesel GHG17 heavy duty.

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Note : This test should be performed only if directed here by a diagnostic procedure.

Perform the following steps for a mechanical compression test on a GHG17Heavy Duty DD Platform Engine:

Jake Brake ® /piston

Valve lash/valve train damage

Camshaft timing

Cylinder liner/ring damage

Fuel injector hold-downs

Blown cylinder head gasket

Cracked cylinder liner or cylinder head

Valve or seat damage

Note : First perform the Relative Cylinder Compression Test using DiagnosticLink.. If results indicate a weak cylinder, perform this mechanical compression test.

1 The valve lash needs to be checked before the mechanical compression test is performed.and adjust as necessary, if no adjustment is needed continue to step 2.

2 Run the engine and bring the engine coolant temperature to normal operating range, 88 to 96°C (190 to 205°F).

3 Disconnect the batteries and plug the batteries into a battery charger. Refer to OEM procedures.

4 Remove rocker cover.

5 Remove the fuel injector harness.

6 Disconnect electrical contacts at the fuel injectors.

7 Disconnect the two wiring terminals going to the Jake Brake ® solenoids.

8 Disconnect the 14-pin fuel injector harness connector.

9 Remove the spring clip holding the fuel injector harness connectors to camshaft frame.

10 Remove the fuel injector wiring harness(es).

11 Remove the high pressure fuel line from all cylinders.

12 Remove all fuel injectors.

13 Remove excess fuel from cylinders using a vacuum pump.

14 Install the compression test adapter (J-47411) into the fuel injector bore in the cylinder head.

15 Install the fuel injector hold-down clamp and bolt. Torque the bolt to 20 N·m (14 lb·ft) + 90 degrees.

16 Install the fuel rail plug (J-48704 or W470589129100).

17 Install a hold-down bolt onto the Jake-Brake ® solenoid and snug the bolt.

18 Reconnect the batteries; keep the battery charger plugged into the batteries.

Note : Verify that the battery voltage does not go low enough to affect engine cranking speed. If the cranking speed is affected, then the results will be inaccurate. A battery charger will help to maintain an acceptable battery voltage.

19 Using DiagnosticLink start the Mechanical Compression Test routine, this will disable fuel from the Quantity Control Valve.

20 With the batteries fully charged, crank the engine over five compression strokes at 150 rpm or greater using the starter motor. Record the compression reading on the gauge.

21 At normal operating temperature, the compression reading should be no less than 28 bar (400 psi). If compression readings are below specifications, repeat step 13 with a different gauge to be certain of the reading.

Note : Fuel injector hold-down bolts are a one-time use item.

22 Remove the fuel injector hold-down clamps. Discard the hold-down bolt and remove the compression test adaptors.

23 Repeat steps for all suspect cylinders.

24 Repair engine as necessary.

Posted on October 22, 2024October 12, 2024 by autoepccatalog

HITACHI ZX-6 Coolant Control Valve Operation Check Machine

This is the instruction show you guide on how to do coolant control valve operation check for HITACHI ZX-6 coolant control valve operation check.

Preparations:

2024 HITACHI AllinOne Tool 3.13

Hitachi Dr.ZX Excavator Diagnostic Tool Cable

Procedures:

1 Click Operation Check of [Coolant Control Valve].

2 Click [Start].
The forced operation is continued while “Executing” is displayed.
Click [Stop] if you want to stop the forced operation.
• One Time … If 60 seconds pass, it will stop automatically.
• Continuous … ON / OFF of valve ie reperted every 5 seconds.

3 Turn the key switch OFF.

Please carry out only in the state of key switch ON.

Coolant Control Valve checking of operations cannot be carried out during engine operation.

[Procedures]

1) Please change into a key switch ON state (Engine stopped)

2) Depress start button.

one timefor 60 seconds turns on a valve (Opened).it turns off automatically in 60 seconds(Closed).

Continuation:

ON(Opended)/OFFidosed) of a vaive is repeated every 5 seconds.Please depress a stop button to stop.

3) Piwase check whether the operation sound of Coolant Contrcl Vaive can be heard.

4) After work tum key OFF.

Posted on October 17, 2024October 11, 2024 by autoepccatalog

DEUTZ EMR3 Engine Control Unit 17/729/ArHt1 Trouble Repair

Here is the instruction show you guide on how to repair Deutz EMR3 engine control unit trouble code 17/729/ArHt1.

Deutz EMR3 engine control unit ArHt1.

Preparations:

2023 Deutz Serdia2010

Deutz DECOM Diagnostic Kit

17 / 729 / ArHt1
Error description AIR HEATER RELAY
Air heater relay: the current drain measured by ECU is out of the target range

Error codes
DEUTZ-Errorcode: 17
BlinkCode (short-long-short): 2 – 6 – 3
SPN: 729

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
12. Errormode not identifiable

Errordetection
Errorlamp shows permanent light. Entry in errormemory.

Possible reason for error
Cable break or short circuit at EDC output, relay defective,
connection cable demaged

Take actions for error repair
Check cabling, if sensor not working, check relay 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: yes
Signal Priority: 2

Posted on October 12, 2024October 9, 2024 by autoepccatalog

Doosan Excavator P025B Dosing System Pressure Lower Solution

Here is the instruction show you guide on how to solve Doosan excavator differential pressure of the dosing system lower than the hysteresis threshold.

Preparation:

Doosan Data Monitoring System DMS-5

Doosan Diagnostic Tool

Doosan DDT SCR+DPF+DCU+ECU Diagnostic Tool

Reason:

Differential pressure of the dosing system lower than threshold (3750hPa)

1) Overview

2) Circuit Description
Signal : 142 Pin
GND : 133 Pin
Resistance Type Sensor
Disconnect : 5V
Connect : 0~5V

3) Component Location
Upstream pressure sensor in MU (Metering Unit) (②)

4) Condition for Running Diagnostic
Constantly during states Regeneration Control and Purging Control

5) Condition for Setting the Fault Code
Differential pressure < 3750hpa
Defect time > 3000ms
Different pressure = Upstream pressure in MU – Exhaust pressure

6) Condition for Clearing the Fault Code
Differential pressure > 3950hpa
Defect time > 1000ms

7) Check List

Posted on October 7, 2024September 30, 2024 by autoepccatalog

ISUZU 4JJ1 Engine P0118 Engine Coolant Temperature Circuit High Input

The engine coolant temperature sensor is installed near the thermostat housing. The engine coolant temperature sensor is a variable resistor and measures the temperature of the engine coolant. This sensor has a signal circuit and a GND circuit which are connected to the ECM. The sensor resistance is high when the engine coolant temperature is low, and the sensor resistance decreases as the engine coolant temperature increases. The ECM detects a high voltage when the sensor resistance is high and a low voltage when the sensor resistance is low. If the ECM detects an excessively high signal voltage, the DTC is set.

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Condition for setting the DTC

Preconditions

・The ignition switch is ON. ・3 minutes or more have passed since the engine was started. ・DTCs P060B, P160B, and P1655 are not set.

Setting conditions

・The ECM detects that the engine coolant temperature sensor signal voltage is 4.9 V or more for 5 seconds.

Action taken when DTC sets

・Failure is indicated* in the monitor on the machine, or the diagnostic light illuminates.

Note: *Depending on the machine manufacturer, a failure may not be indicated.

・The ECM substitutes a default ECT value. ・The ECM limits the fuel injection quantity.

P0118 Diagnostics

OBD system check

Prioritized DTC check

Connect a trouble diagnosis scan tool.

Turn OFF the ignition switch for 30 seconds or more.

Start the engine.

Observe the DTC information with a trouble diagnosis scan tool. Is DTC P1655 set?

Yes

Go to DTC P1655 diagnosis.

⇒Go to Engine coolant temperature sensor signal voltage check.

Engine coolant temperature sensor signal voltage check

Observe “Engine coolant temperature sensor” display on the trouble diagnosis scan tool. Is “Engine coolant temperature sensor” display more than or equal to the specified value?

values： 4.9 V

Yes

⇒Go to Engine coolant temperature sensor signal output voltage check.

Go to Intermittent conditions of engine.

Engine coolant temperature sensor signal output voltage check

Turn OFF the ignition switch.

Disconnect the engine coolant temperature sensor harness connector.

Turn ON the ignition switch.

Measure the voltage between the engine coolant temperature sensor signal circuit and the frame ground with a DMM.

values： 4.5 to 5.5 V

The reading is more than the specified value.

⇒Go to Inspection for short to power supply in engine coolant temperature sensor signal circuit.

The reading is within the specified range.

⇒Go to Engine coolant temperature sensor signal voltage check using fused jumper wire.

The reading is less than the specified value.

⇒Go to Inspection for open circuit in engine coolant temperature sensor signal circuit.

Engine coolant temperature sensor signal voltage check using fused jumper wire

Connect a fused jumper wire between the sensor signal circuit and the sensor GND circuit of the engine coolant temperature sensor.

Observe “Engine coolant temperature sensor” display on the trouble diagnosis scan tool. Is “Engine coolant temperature sensor” display less than or equal to the specified value?

values： 0.1 V

Yes

⇒Go to Inspection for short to 5 V power supply in engine coolant temperature sensor signal circuit.

⇒Go to Inspection for open circuit in engine coolant temperature sensor GND circuit.

Inspection for short to power supply in engine coolant temperature sensor signal circuit

Inspect the signal circuit between the ECM and the engine coolant temperature sensor for a short to the battery power supply circuit or a short to the ignition power supply circuit. Is the result normal?

Note: The engine coolant temperature sensor may be damaged if the sensor signal circuit is shorted to the power supply.

Yes

⇒Go to ECM replacement.

Repair the circuit as necessary.

⇒Go to Repair verification.

Inspection for open circuit in engine coolant temperature sensor signal circuit

Inspect the signal circuit between the ECM and the engine coolant temperature sensor for an open circuit or high resistance. Is the result normal?

Yes

⇒Go to ECM harness connector inspection.

Repair the circuit as necessary.

⇒Go to Repair verification.

Inspection for open circuit in engine coolant temperature sensor GND circuit

Inspect the GND circuit between the ECM and the engine coolant temperature sensor for an open circuit or high resistance. Is the result normal?

Caution: The engine coolant temperature sensor shares the GND circuit with other sensors. A malfunction in the GND circuit may set DTCs on sensors that share this circuit.

Yes

⇒Go to ECM harness connector inspection.

Repair the circuit as necessary.

⇒Go to Repair verification.

Inspection for short to 5 V power supply in engine coolant temperature sensor signal circuit

Inspect the signal circuit between the ECM and the engine coolant temperature sensor for a short to the 5 V power supply circuit. Is the result normal?

Yes

⇒Go to Engine coolant temperature sensor harness connector inspection.

Repair the circuit as necessary.

⇒Go to Repair verification.

Engine coolant temperature sensor harness connector inspection

Inspect for poor connections at the engine coolant temperature sensor harness connector. Is the connection status normal?

Yes

Replace the engine coolant temperature sensor.

⇒Go to Repair verification.

Repair the connections as necessary.

⇒Go to Repair verification.

ECM harness connector inspection

Inspect for poor connections at the ECM harness connector. Is the connection status normal?

Yes

⇒Go to ECM replacement.

Repair the connections as necessary.

⇒Go to Repair verification.

ECM replacement

Note: Perform programming after replacing the ECM.

Procedure completion

⇒Go to Repair verification.

Repair verification

Clear the DTC with a trouble diagnosis scan tool.

Turn OFF the ignition switch for 30 seconds or more.

Start the engine.

Perform a test-run under the conditions for running the DTC.

Observe the DTC information with a trouble diagnosis scan tool. A DTC should not be set.

Posted on October 2, 2024September 20, 2024 by autoepccatalog

How to Solve Fendt MT1149 Tractor DEF Suction Line heater Short circuit Error

Here is the instruction show you guide on how to solve Fendt MT1149 tractor circuit on the DEF suction line heater control circuit.

Preparations:

AGCO EDT 2024

AGCO 2×4 CANUSB

Code SA 00 SPN 4340 FMI 03

Short circuit on the DEF suction line heater control circuit.

Diagnosis and solution

Clear the error log.

Restart the engine module.

If the fault code shows again during the next driving cycle, check the following.

Check the DEF suction line heater relay harness. Make sure the connections are good and the contacts are clean.

Replace the DEF suction line heater relay. If the system is correct and the fault code is not active, the original DEF suction line heater relay is bad.

Code SA 00 SPN 4340 FMI 04

Short circuit on the DEF suction line heater control circuit.

Diagnosis and solution

Clear the error log.

Restart the engine module.

If the fault code shows again during the next driving cycle, check the following.

Check the DEF suction line heater relay harness. Make sure the connections are good and the contacts are clean.

Replace the DEF suction line heater relay. If the system is correct and the fault code is not active, the original DEF suction line heater relay is bad.