国产另类 免费观看_乱码日韩欧美一区二区三区_亚洲丁香五月激情综合在线_一级真实国产毛片_cosplay十八禁白丝内衣网站_一本大道香蕉综合视频在线观看_伊人久久综合精品无码AV_欧美 日韩 国产 在线_亚洲最大无码中文字幕_午夜精品兔费视频亚洲

首頁(yè) 技術(shù)中心>John Deere柴油機(jī)難啟動(dòng)的原因?yàn)榍S位置/凸輪位置傳感器不同步的維修技術(shù)資料約翰迪爾機(jī)油冷卻器RE59296

John Deere柴油機(jī)難啟動(dòng)的原因?yàn)榍S位置/凸輪位置傳感器不同步的維修技術(shù)資料約翰迪爾機(jī)油冷卻器RE59296

2022/5/27 15:04:30

John Deere柴油機(jī)難啟動(dòng)的原因?yàn)榍S位置/凸輪位置傳感器不同步的維修技術(shù)資料約翰迪爾機(jī)油冷卻器RE59296

重要事項(xiàng)：不要將探頭強(qiáng)行插入接頭計(jì)算正確的噴射開始時(shí)間和噴射量

否則會(huì)導(dǎo)致端子損壞。使用燃油噴射，然后命令EUIs

JT07328連接器適配器測(cè)試套件。測(cè)量約翰迪爾位置傳感器信號(hào)的凸輪和曲軸位置傳感器接頭之間的已知關(guān)系。這將確保信號(hào)允許約翰迪爾ECU識(shí)別何時(shí)一個(gè)信號(hào)端子沒有損壞。與另一個(gè)不同步。

如果出現(xiàn)以下情況，將設(shè)置DTC SPN 637 FMI 7：

約翰迪爾凸輪軸和曲軸位置傳感器

•ECU檢測(cè)到凸輪和曲柄輸入

•約翰迪爾凸輪和曲柄位置傳感器均不同步。感應(yīng)式拾波傳感器，用于檢測(cè)

凸輪和曲柄正時(shí)輪。如果設(shè)置了DTC SPN 637 FMI 7，ECU將使用

確定發(fā)動(dòng)機(jī)轉(zhuǎn)速和發(fā)生的曲柄位置輸入：

相對(duì)于TDC的精確活塞位置。使用

凸輪位置輸入，ECU能夠確定•根據(jù)故障代碼的原因，氣缸在壓縮發(fā)動(dòng)機(jī)末端時(shí)可能會(huì)死亡，然后可能會(huì)重新啟動(dòng)，也可能不會(huì)重新啟動(dòng)。(打、擊等的)一下根據(jù)此信息，ECU

IMPORTANT:  Do not force probes into connector calculates the correct start of injection and amount
terminals or damage will result. Use of fuel to inject, then commands the EUIs
JT07328 Connector Adapter Test Kit accordingly. A known relationship between the cam to make measurements in position sensor signal and the crank position sensor connectors. This will ensure that signal allows the ECU to recognize when one signal terminal damage does not occur. is not in sync with the other.
DTC SPN 637 FMI 7 will set  if:
Camshaft and Crankshaft Position Sensors
• The ECU detects that the cam and crank inputs  are
• The cam and crank position sensors are both not in sync with each other. inductive type pickup sensors that detect notches on
the cam and crank timing wheels. The ECU  uses the If DTC SPN 637 FMI 7 sets, the following  will
crank position input to determine engine speed and occur:
precise piston position in relation to TDC. Using  the
cam position input, the ECU is able  to determine •  Depending on the cause of the trouble  code, the when a cylinder is at the end of  the compression  engine may die, and then it may or may  not restart. stroke. Based on this information, the ECU

Level 6 ECU - DTC SPN 637 FMI 7 Crank Position/Cam Position Out of Sync Diagnostic   Procedure
NOTE: Before using this diagnostic procedure, perform a preliminary inspection of the 60-way ECU connector and the cam and crank position sensors connectors looking for dirty, damaged, or poorly positioned  terminals.

1   Intermittent Fault Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition ON, engine OFF

2.   Using the DST, monitor DTCs on the active code display  parameter

3.   Make notes of any DTCs, then clear all  DTCs

4.   Ignition ON, engine running

5.   Using the DST, monitor DTCs on the active code display  parameter

SPN 637 FMI 7

reoccurs:

GO TO  2

SPN 637 FMI 7 doesn’t reoccur: Problem is intermittent. If no other codes are present, see INTERMITTENT FAULT

DIAGNOSTICS, earlier in this Group.

– – –1/1

 

2 Cam to Crank Timing Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Remove rocker arm cover

NOTE: Rocker arm cover gasket is reusable if no visible damage is detected. Do not store cover resting on gasket surface.

3.   Check cam to crank timing. See CHECK AND  ADJUST

CAMSHAFT-TO-CRANKSHAFT TIMING in CTM100, Section 02, Group 050.

Crank timing pin engages in slot: GO TO  3

Crank timing pin won’t engage in slot:

Adjust timing between cam and crank. See CHECK AND ADJUST CAMSHAFT-TO- CRANKSHAFT TIMING in

CTM100, Section 02,

Group 050.

– – –1/1

3 Crank and Cam Timing Wheel and Sensor Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.    Ignition OFF

2.   Remove cam and crank timing pins

3.    Inspect crank timing wheel and cam timing wheel for broken teeth, nicks burrs, or other damage

4.   Remove cam and crank sensors from cylinder head and timing gear  cover

5.   Inspect cam and crank position sensors for cracks, debris, or other  damage.

All components OK:

GO TO  4

Faulty component found:

Replace faulty component and retest.

– – –1/1

4 Crankshaft Position Sensor Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Disconnect crank position sensor connector

3.   Using a multimeter, measure resistance between both terminal of the crank position sensor

Measurement between 2500 and 3500 ohms:

GO TO  5

Measurement below 2500 ohms or above 3500 ohms:

Faulty crankshaft position sensor

– – –1/1

5 Camshaft Position Sensor Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Disconnect cam position sensor connector

3.   Using a multimeter, measure resistance between both terminals of the cam position sensor

Measurement between 2500 and 3500 ohms:

GO TO  6

Measurement below 2500 ohms or above 3500 ohms:

Faulty camshaft position sensor

– – –1/1

6  Open in Crank Position Sensor Input and Return Wire Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Disconnect crank position sensor connector

3.   Disconnect 60-way ECU connector

4.   Using a multimeter, measure resistance between:

·   Terminal A of the crank position sensor harness connector and terminal X2 in the harness end of the 60-way ECU connector.

·   Terminal B of the crank position sensor harness connector and terminal W3 in the harness end of the 60-way ECU  connector.

Both measurements 5 ohms or less:

GO TO  7

Either measurement greater than 5 ohms: Open in crank position sensor input wire

OR

Open in crank position sensor return wire

OR

Terminals A and B in the crank position sensor harness connector possibly inverted

– – –1/1

7 Crank Position Sensor Input Wiring Harness Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.    Ignition OFF

2.   Crank position sensor connector and 60-way ECU connector still  disconnected

3.    Using a multimeter measure resistance between terminal X2 in the harness end of the 60-way ECU connector and:

·   A good ground

·   All other terminals in both ECU connectors

All measurements greater than 2000 ohms: GO TO  8

Any measurement less than 2000 ohms:

Faulty crank position sensor input wiring harness

– – –1/1

8   Crank Position Sensor Return Wiring Harness Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.    Ignition OFF

2.   Crank position sensor connector and 60-way ECU connector still  disconnected

3.    Using a multimeter measure resistance between terminal W3 in the harness end of the 60-way ECU connector and:

·   A good ground

·   All other terminals in both ECU connectors

All measurements greater than 2000 ohms: GO TO  9

Any measurement less than 2000 ohms:

Faulty crank position sensor return wiring harness

– – –1/1

9 Open in Cam Position Input and Return Wire Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Disconnect cam position sensor connector

3.   Disconnect 60-way ECU connector

4.   Using a multimeter, measure resistance between:

·   Terminal A of the cam position sensor harness connector and terminal X1 in the harness end of the 60-way ECU connector

·   Terminal B of the cam position sensor harness connector and terminal W2 in the harness end of the 60-way ECU connector

Both measurements 5 ohms or less:

GO TO 10

Either measurement greater than 5 ohms: Open in cam position sensor input wire

OR

Open in cam position sensor return wire OR

Terminals A and B in the cam position sensor harness connector possibly inverted

– – –1/1

10 Cam Position Sensor Input Wiring Harness Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Cam position sensor connector and 60-way ECU connector still  disconnected

3.   Using a multimeter measure resistance between terminal X1 in the harness end of the 60-way ECU connector and:

·   A good ground

·   All other terminals in both ECU connectors

All measurements greater than 2000 ohms: GO TO 11

Any measurement less than 2000 ohms:

Faulty cam position sensor input wiring harness

– – –1/1

11 Cam Position Sensor Return Wiring Harness Test

NOTE: For wiring and theory of operation information, see DTC SPN 637 FMI 7 CRANK POSITION/CAM POSITION OUT OF SYNC supporting information.

1.   Ignition OFF

2.   Cam position sensor connector and 60-way ECU connector still  disconnected

3.   Using a multimeter measure resistance between terminal W2 in the harness end of the 60-way ECU connector and:

·   A good ground

·   All other terminals in both ECU connectors

All measurements greater than 2000 ohms: Faulty crank sensor connector

OR

Faulty cam sensor connector

OR

Faulty ECU connector OR

Faulty ECU

Any measurement less than 2000 ohms:

Faulty cam position sensor return wiring harness

– – –1/1

免費(fèi)熱線
400-082-9096?
整機(jī)銷售
0731-84424871? 18374999699
售后維修
0731-84424872? 15580888444
配件銷售
0731-84424873? 18274802060
手機(jī)端
微信公眾號(hào)