Geely EC718, EC718RV, EC715, EC715RV. Manual part — 186

Check the existence of the following conditions:

(a)

Sensor housing is damaged.

(b)

Sensor loose or improperly installed.

(c)

Sensor wiring harness connector loose.

Next

Note

It is prohibited Connect intake manifold absolute pressure sensor 5 V reference voltage circuit and other components,
otherwise it will damage the sensor and ECM.

Step 2

Measure intake air pressure and temperature sensor resistance.

Intake Air Temperature/Pressure Sensor

FE02-5024b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect intake air pressure and temperature sensor
wiring harness connector EN16.

(c)

Measure intake air temperature sensor resistance.

Standard Resistance: (Refer to the specific
parameters

2.2.1.2

Temperature Sensor Temperature and

Resistance Correlation

): 2,400 Ω/20°C(68 ºF)

(d)

Connect intake air pressure and temperature sensor wiring
harness connector EO16.

Is the resistance specified value?

No

Replace the intake air pressure and
temperature sensor. Go to step 9

Yes

Step 3

Measure intake air temperature pressure sensor signal circuit.

FE02-5341b

1 2 3 4

Intake Air Temperature/Pressure Sensor Harness
Connector EO16

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect intake air pressure and temperature sensor
wiring harness connector EO16.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure voltage between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.2 and a reliable ground.

Standard Voltage: 4.7-5.5 V

(e)

Connect intake air pressure and temperature sensors
connector EO16.

Voltage normal?

No

Go to step 5

Yes

Step 4

Measure intake air temperature pressure sensor ground circuit.

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Control System JL4G15-D

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FE02-5342b

1 2 3 4

Intake Air Temperature/Pressure Sensor Harness
Connector EO16

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect intake air pressure and temperature sensor
wiring harness connector EO16.

(c)

Turn the ignition switch to "ON" position.

(d)

Measure resistance between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.1 and a reliable ground.

Standard Resistance Value: Less than 3 Ω

(e)

Connect intake air pressure and temperature sensors wiring
harness connector EO16.

Resistance normal?

No

Go to step 6

Yes

Go to step 7

Step 5

Check intake air temperature pressure sensor signal circuit.

FE02-5343b

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Intake Air Temperature/Pressure Sensor Harness
Connector EO16

ECM Harness Connector EO01

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect intake air pressure and temperature sensor
wiring harness connector EO16.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.2 and ECM harness connector terminal No.9. Check
whether the circuit is open.

(e)

Measure resistance between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.2 and a reliable ground. check whether the circuit is short
to ground.

(f)

Measure voltage between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.2 and power supply. check whether the circuit is short to
power supply.

Test Items

Standard Value

Resistance Between EO16 (2) and EO01 (9)

Less than 1 Ω

Resistance Between EO16 (2) and A Reliable
Ground

10 kΩ or higher

Voltage Between EO16 (2) and A Reliable
Ground

0 V

Next

Go to step 7

Step 6

Check intake air temperature pressure sensor ground circuit.

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Control System JL4G15-D

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Intake Air Temperature/Pressure Sensor Harness
Connector EO16

ECM Harness Connector EO01

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect intake air pressure and temperature sensor
wiring harness connector EO16.

(c)

Disconnect ECM harness connector EO01.

(d)

Measure resistance between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.1 and ECM harness connector terminal No.19. Check
whether the circuit is open. Otherwise, repair the faulty part.

(e)

Measure voltage between intake air pressure and
temperature sensor wiring harness connector EO16 terminal
No.1 and a reliable ground. check whether the circuit is short
to power supply. Otherwise, repair the faulty part.

Test Items

Standard Value

Resistance Between EO16 (1) and
EO01 (19)

Less than 1 Ω

Voltage Between EO16 (1) and A
Reliable Ground

0 V

Execute next step as per normal.

Next

Step 7

Check ECM power supply circuit.

(a)

Check whether ECM power supply circuit is normal.

(b)

Check whether ECM ground circuit is normal.

No

Repair the faulty part.

Yes

Step 8

Replace ECM.

(a)

Replace ECM. Refer to

2.2.8.8

Engine Control Module

Replacement

.

(b)

Carry out crankshaft position sensor self learn. Refer to

2.12.7.11

Crankshaft Position Sensor (CKP) Learn

.

Next

Step 9

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

(a)

Connect scan tool to the datalink connector.

(b)

Turn the 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.

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No

Intermittent Fault. Refer to

2.2.7.3

Intermittent

Fault Check

Yes

Step 10

Diagnostic completed.

5. Repair Instructions:

Replace intake air pressure and temperature sensors. Refer to

2.2.8.7

Intake Air Pressure and Temperature Sensor

Replacement

.

2.12.7.20 DTC P0117 P0118

1. DTC Descriptor:

DTC

P0117

Engine Coolant Temperature Sensor Circuit Voltage Too Low

DTC

P0118

Engine Coolant Temperature Sensor Circuit Voltage Too High

ECT sensor is a variable resistor with a negative temperature coefficient and used to measure the temperature of engine coolant.
ECM provides a 5V voltage through ECM harness connector EO01 terminal No.24 to ECT sensor harness connector EO23 terminal
No.1 and a low internal reference voltage through EO01 terminal No.29 to ECT sensor connector EO23 terminal No.3. ECM will
always record the length of time the ignition switched off. When starting, if the ignition switched off time reaches the preset time, the
engine control module will compare the engine coolant temperature and intake air temperature in order to determine whether the
difference between the two is in normal working range.

2. Conditions For Setting DTC and The Fault Location:

DTC Code

DTC Detection

Strategy

Conditions For Setting The DTC (Control Strategy)

Fault Locations

P0117

1. More Than the

Upper Limit

2. Lower Than the

Lower Limit

1. Idle

2. Coolant temperature sensor circuit is short to ground.

3. Coolant temperature by default changes as the running

time changes.

1. Sensor Circuit

2. Sensor

3. ECM

P0118

1. Idle.

2. Coolant temperature sensor signal circuit is open or short

to 5V voltage.

3. Coolant temperature by default changes as the running

time changes.

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