Geely Diagnosis Flow. Manual part — 38

149

Yes

Repair or replace
harness

4

Check lines between sensor signal line and 59# pin of ECU are opened or
shorted to power source or ground.

No Diagnosis

help

No.100 Malfunction code: P0506 "idling speed lower than target speed

value"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “OFF”.

Next

step

Yes Next

step

2

Check adjusting screw, throttle dragline and condition of throttle work
normally.

No

Repair and
maintain as
necessary

Yes Next

step

3

Check idling speed governor works normally.

No

Repair and
maintain as
necessary

Yes

Repair as
necessary

4

A. Check pressure of oil supply system is too low;
B. Check oil injector is blocked;
C. Check the system is well exhausted.

No Diagnosis

help

No.101 Malfunction code: P0507 "idling speed higher than target speed

value"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition
switch to “OFF”.

Next

step

Yes Next

step

2

Check adjusting screw, throttle dragline and condition of throttle
work normally.

No

Repair and maintain as
necessary

Yes Next

step

3

Check idling speed governor works normally.

No

Repair and maintain as
necessary

Yes

Repair as necessary

4

A. Check the system is exhausted; B. Check oil injector is blocked;
C. Check pressure of oil supply system is too high.

No Diagnosis

help

No.102 Malfunction code: P0508 "voltage of control circuit of idling

speed governor too low"

Serial No. Operation steps

Results

Follow-ups

150

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “ON”.

Next

step

Yes Next

step

2

Take out connector of idling speed governor, and check resistance between
A and D, B and C pins is around 53±5.3Ω under 20 with the multimeter.

℃

No

Replace stepper
motor

Yes

Repair or replace
harness

3

Check lines among A, B, C D pins of idling speed governor and 65#, 66#,
67#, 64# pins of ECU are shorted to ground.

No Diagnosis

help

No.103 Malfunction code: P0509 "voltage of control circuit of idling

speed governor too high"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “ON”.

Next

step

Yes Next

step

2

Take out connector of idling speed governor, and check resistance between
A and D, B and C pins is around 53±5.3Ω under 20 with the multimeter.

℃

No

Replace stepper
motor

Yes

Repair or replace
harness

3

Check lines among A, B, C D pins of idling speed governor and 65#, 66#,
67#, 64# pins of ECU are shorted to power source.

No Diagnosis

help

No.104 Malfunction code: P0511 "malfunction control circuit of idling

speed governor"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “ON”.

Next

step

Yes Next

step

2

Take out connector of idling speed governor, and check resistance between
A and D, B and C pins is around 53±5.3Ω under 20 with the multimeter.

℃

No

Replace stepper
motor

Yes

Repair or replace
harness

3

Check lines among A, B, C D pins of idling speed governor and 65#, 66#,
67#, 64# pins of ECU are opened.

No Diagnosis

help

No.105 Malfunction code: P0560 "unreasonable system voltage signal"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “OFF”.

Next

step

Yes Next

step

2

Check battery voltage is around 12V with the multimeter.

No Replace

battery

cell

151

Yes

Repair or replace
harness

3

Check lines among 44#, 45#, 63# pins of ECU and 87# pin of main relay
are opened or shorted to ground.

No Next

step

Yes Next

step

4

Start the engine, and check charging voltage of generator is between 9-16V
within different speed range.

No Replace

generator

Yes Diagnosis

help

5

Check earth point of engine harness is good.

No

Repair or replace
harness

No.106 Malfunction code: P0562 "system voltage too low"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “OFF”.

Next

step

Yes Next

step

2

Check battery voltage is around 12V with the multimeter.

No Replace

battery

cell

Yes

Repair or replace
harness

3

Check resistance of lines between 44#, 45#, 63# pins of ECU and 87# pin
of main relay are too large.

No Next

step

Yes Next

step

4

Start the engine, and check charging voltage of generator is between 9-16V
within different speed range.

No Replace

generator

Yes Diagnosis

help

5

Check earth point of engine harness is good.

No

Repair or replace
harness

No.107 Malfunction code: P0563 "system voltage too high"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “OFF”.

Next

step

Yes Next

step

2

Check battery voltage is around 12V with the multimeter.

No Replace

battery

cell

152

Yes Next

step

3

Start the engine, and check charging voltage of generator is between 9-16V
within different speed range.

No Replace

generator

Yes Diagnosis

help

4

Check earth point of engine harness is good.

No

Repair or replace
harness

No.108 Malfunction code: P0601 "error of check code of electronic

control unit"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument, and place ignition switch at “ON”.

Next step

Yes Next

step

2

Eliminate malfunction code, and reconfirm this malfunction is stable status
malfunction.

No System

normal

3 Replace

ECU.

End

No.109 Malfunction code: P0602 "error of identification code of

diagnosis data of electronic control unit"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “ON”.

Next

step

Yes Next

step

2

Eliminate malfunction code, and reconfirm this malfunction is stable status
malfunction.

No System

normal

3 Replace

ECU.

End

No.110 Malfunction code: P0645 "malfunction of relay control circuit of

AC compressor"

Serial No. Operation steps

Results

Follow-ups

1

Switch on diagnosis instrument and commutator, and place ignition switch
to “OFF”.

Next

step