Geely Emgrand X7. Manual part - 78

Geely Emgrand X7. Manual part - 78

2

Inspect resistance between APP sensor harness connector IP51 terminal No.5 and a
reliable ground.

A. Turn the ignition switch to the OFF position.

B. Disconnect APP sensor harness connector IP51.

C. Turn the ignition switch to the ON position.

D. Measure resistance between IP51 terminal No.5 and a reliable ground.

Standard Resistance: Less than 3 Ω

Does it conform to the standard value?

3

Inspect APP sensor harness connector IP51 terminal No.6.

A. Turn the ignition switch to the OFF position.

B. Disconnect APP sensor harness connector IP51.

C. Disconnect ECM harness connector EM01.

D. Measure resistance between IP51 terminal No.6 and a reliable ground.

E. Measure voltage between IP51 terminal No.4 and a reliable ground.

F. Test continuity between IP51 terminal No.6 and EM01 terminal No.42.

Results

Test Items

Standard Value

Resistance Between IP51 (6) and A Reliable
Ground

Lager than 10 kΩ

Voltage Between IP51 (6) and A Reliable
Ground

Less than 1 Ω

Continuity Between IP51 (6) and EM01 (42)

0 V

Inspect whether according with the standard value?

4

Inspect APP sensor harness connector IP51 terminal No.6 output voltage.

Inspect APP sensor harness connector IP51 terminal No.6 output voltage.

Yes

No

Refer to 2.2.8.4 “Replacement of
Acceleration Pedal” to replace
the APP sensor.

Go to step 7

No

Circuit fault, repair the faulty part.

Yes

No

Go to step 5

Yes

311

5

Inspect APP sensor harness connector IP51 terminal No.1 and 5.

A. rotated ignition switch to OFF position .

B. Disconnect APP sensor harness connector IP51.

C. Disconnect ECM harness connector EM01.

D. Turn the ignition switch to the ON position.

E. Measure resistance between IP51 terminal No.1 and a reliable ground.

F. Test continuity between IP51 terminal No.1 and EM01 terminal No.66.

G. Measure voltage between IP51 terminal No.5 and a reliable ground.

H. Test continuity between IP51 terminal No.5 and EM01 terminal No.76.

Results

Test Items

Standard Value

Resistance Between IP51 (1) and A Reliable
Ground

Lager than 10 kΩ

IP51(1)- EM01(66)Continuity

Less than 1 Ω

Voltage Between IP51 (5) and A Reliable
Ground

0 V

IP51(5)- EM01(74)Continuity

Less than 1 Ω

Inspect whether according with the standard value?

6

Inspect ECM Power Supply Circuit and Ground Circuit.

A. Refer to 2.2.7.43 DTC P0562 P0563 to inspect ECM Power Supply Circuit and ground

circuit.

ECM power and ground circuits normal?

7

Refer to 2.2.8.1 Replacement of Engine Control Module to replace ECM.

8

Refer to 2.2.7.11“Crankshaft Position Sensor (CKP) Learn to carry out the crankshaft
position sensor learn.

Next

Next

No

Power and ground circuits fault.

Yes

No

Circuit fault, repair the faulty part.

Yes

312

9

Use fault diagnosis tester to confirm if DTC is stored again .

A. Connect fault diagnosis tester to the data link connector.

B. Rotated 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. Road test the vehicle for at least 10min.

F. Read control system DTC code again to confirm that the system has no DTC code output.

10 Troubleshooting

5. Maintenance

guide

Acceleration pedal position sensor can only be replaced as an assembly. Do not disassemble. Refer
to 2.2.8 “Replacement of Acceleration Pedal” to replace the acceleration pedal sensor.

No

Refer to 2.2.7.3 Intermittent Fault
Inspection for intermittent fault.

Yes

313

2.2.7.53 DTC P2135

1. DTC

description:

DTC P2135

Related fault of Electric throttle valve position sensor1# . 2#

ECM compares TPS1 and TPS2 input signals. Two input signals' sum at any time should be close
to 5V. If ECM detects difference between the sum of TPS1 and TPS2 signals and the theoretical
value is big, ECM will report the DTCs code.

2. Conditions for Setting DTC and the Fault Location:

DTC Code

DTC Detection
Strategy

Set(Control Strategy) Conditions Fault

Locations

P2122

Hardware Circuit
Malfunction

– TPS1 or TPS2 single terminal

short connection Power Supply
or Ground

Inconsistence in both signals.

– signal difference larger than

12%.

1. ETC

2. TPMS

Sensor

3. ECM

3. Circuit

figure

Refer to 2.2.7.21 DTC P0122 P0123

4. Diagnostic

Steps:

1

Inspect whether there is other TPS system related DTC codes?

A. Connect fault diagnosis tester to the vehicle diagnostic interface.

B. Rotated ignition switch to ON position .

C. Press the power button of fault diagnosis tester.

D. Select the following menu items: Engine/Read DTC codes.

E. Read DTC codes.

Results

DTC Codes Shown

Go to step

Only P2135

Yes

With P0122, P0123, P0222, P0223

No

2

Inspect TPS1 and TPS2 output voltage signals.

A. Refer to 2.2.7.12 Electronic Throttle Body (ETC) Inspection for the technical parameters.

Do the TPS1 and TSP2 sensors output signal meet the specified values?

No

2.2.7.14 DTC Chapter Index

Yes

314

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