Geely Emgrand X7. Manual part - 65

Geely Emgrand X7. Manual part - 65

(d) Measure resistance between intake camshaft position sensor wire harness connector EM18

terminal A and ECM wire harness connector EM01 terminal 77. Inspect whether there is
short-circuit situation.

(e) Measure resistance between intake camshaft position sensor wire harness connector EM18

terminal A and reliable grounding.Inspect wheter there is grounding short-circuit.

(f) Measure resistance between intake camshaft position sensor wire harness connector EM18

terminal A and reliable grounding. Inspect whether there is power supply short-circuit
situation.

Test Items

Standard Value

Resistance Between EM18 (A) and EM01 (77)

Less than 1 Ω

Resistance Between EM18 (A) and Reliable Ground

10 kΩ or higher

Voltage Between EM18 (A) and Reliable Ground

0V

Are the values specified values?

Step 8

Inspect sensor ECM internal low reference circuit.

(a) Rotated ignition switch to OFF position .

(b) Disconnect the intake camshaft position sensor wiring harness connector EM18.

(c) Disconnect ECM harness connector EM01.

(d) Measure resistance between intake camshaft position sensor wire harness connector EM18

terminal B and ECM wire harness connector EM01 terminal 74. Inspect whether there is
short-circuit situation.

(e) Measure voltage value between air intake camshaft position sensor harness connector EM18

B terminal and reliable grounding, check if circuit exist condition of short-circuit of power
supply.

Test Items

Standard Value

Resistance Between EM18 (B) and EM01 (18)

Less than 1 Ω

Voltage Between EM18 (B) and Reliable Ground

0V

Execute next step as per normal.

Step 9

Inspect whether the intake camshaft signal plate is normal.

No

Repair the faulty part.

Yes

Next

No

Repair the faulty part. Go to step 12

Yes

259

Step 10

Inspect the ECM Power Supply Circuits.

(a) Inspect whether ECM power supply circuit is normal.

(b) Inspect whether ECM ground circuit is normal.

Step 11

Replace ECM

Step 12

Use scan tool to confirm whether the DTC Code is stored again.

(a) Connect the fault diagnosis tester to the diagnostic interface.

(b) Turn ignition switch to ON position.

(c) Clear DTC code.

(d) Start and run the engine at idle speed to warm up the engine for at least 5 min.

(e) Read control system DTC code again to confirm that the system has no DTC code exported.

Step 13

Troubleshooting

5. Maintenance

guide

:

Refer to2.10.7.1 Replacement of Camshaft Position Sensor to replace the intake CMP sensor.

No

Refer to 2.2.7.3 Intermittent Fault
Inspection for intermittent fault.

Yes

Next

No

Repair the faulty part.

Yes

260

2.2.7.37 DTC P0351 P0352 P0353 P0354

1. DTC

description:

DTC P0351

Cylinder 1 Ignition Circuit malfunction

DTC P0352

Cylinder 2 Ignition Circuit malfunction

DTC P0353

Cylinder 3 Ignition Circuit malfunction

DTC P0354

Cylinder 4 Ignition Circuit malfunction

Ignition coil #1 initiate the ignition for Cylinder #1; ignition coil #2 initiate the ignition for
Cylinder #2; ignition coil #3 initiate the ignition for Cylinder #3; ignition coil #4 initiate the
ignition for Cylinder #4. The ignition relay supplies power for the four ignition coils. ECM uses
the ECM harness connector EM01 terminal #4 to control Cylinder #1 ignition coil primary circuit
to be grounded; uses the terminal #1 to control Cylinder #2 ignition coil primary circuit to be
grounded; uses the terminal #62 to control Cylinder #3 ignition coil primary circuit to be grounded;
uses the terminal #81 to control Cylinder #4 ignition coil primary circuit to be grounded.

2. DTC Code Set Up and Removal Conditions:

DTC Code

DTC Detection
Strategy

Set(Control Strategy) Conditions Fault Locations

P0351

P0352

P0353

P0354

Hardware
Circuit
Inspection

Operating at idle, with the ignition
coil control end disconnected,
short to ground or short to power
supply, this DTC code will be set.
The fuel injection of the cylinder
with this DTC code will stop
leading to engine speed fluctuates.

1. Ignition

Coil

Circuit

2. Ignition

Coil

3. ECM

261

3. Circuit

figure

蓄电池

EF40

EF21

主继电器ER09

87

30

86

85

4

EM01 COILA

EM01 MPR

1

EM01 COILB

81

44

EM01 COILD

62

EM01 COILC


一缸点火线圈

3

1

2

二缸点火线圈

3

1

2

三缸点火线圈

3

1

2

四缸点火线圈

3

1

2

NL02-0049c

4. Diagnostic

Steps:

Refer to 2.10.6 “Diagnostic Information and Procedures” for ignition coil inspection.

5. Maintenance

guide

Refer to 2.10.7.3 “Replacement of Ignition Coil” to replace the ignition coil.

Main relay ER09

Battery

One cylinder ignition coil

Two cylindersignition

coil

Three cylindersignition coil

Four cylinderignition

coil

Engi

ne

contro

l

modu

le

262

Рассказать друзьям