Chery Tiggo T11 LHD. Manual — part 57

Chery T11 Service Manual Electric Injection System

41

Failure Code:

P0230-1

Short circuit of fuel pump relay to the positive electrode of

power supply

Set emergency control scheme:

 Switch on the failure lamp till the failure disappears
 NULL

Connection terminal:

MT

20U

Fuel Pump Relay

Normal Measurement

Signal

System main power supply:

\

Refer to Electrical

System Description

12V

Relay drive:

47

Refer to Electrical

System Description

0V (Operating) and 12V

(Stop)

Condition for Determination

Possible Reason

Actions

Failure duration > 1.5625 s

1) Short circuit of relay drive

circuit

to

the

positive

electrode of power supply

2) Relay damaged

3) ECM’s this signal output

control interface failure

1) Repair harness

2) Replace relay

3) Replace ECM

Dynamic Relay

Main Power Supply

T11 Fuel Pump Control

Chery T11 Service Manual Electric Injection System

42

Failure Code:

P0230-2

Open circuit of fuel pump relay or short circuit to earth

Set emergency control scheme:

 Switch on the failure lamp till the failure disappears
 NULL

Connection terminal:

MT

20U

Fuel Pump Relay

Normal Measurement

Signal

System main power supply:

\

Refer to Electrical

System Description

12V

Relay drive:

47

Refer to Electrical

System Description

0V (Operating) and

12V (Stop)

Condition for Determination

Possible Reason

Actions

Failure duration > 1.5625 s

1) Unreliable connection of the

connecting parts

2) Open

circuit

of

the

connection

system

main

power supply circuit

3) Short circuit of relay drive

circuit

to

the

negative

electrode of power supply

4) Open circuit of relay drive

circuit

5) Relay damaged

6) ECM’s this signal output

control interface failure

1) Connect again

2) Repair harness

3) Repair harness

4) Repair harness

5) Replace relay

6) Replace ECM

Chery T11 Service Manual Electric Injection System

43

T11 Knock Sensor

Failure Code: P0325-0

Bad connection to knock sensor

Set emergency control scheme:  Switch on the failure lamp till the ignition switch is

turned off

 Apply the safety ignition advance angle table

Connection terminal:

MT

20U

Knock Sensor

Normal Measurement

Signal

Knock signal:

69

0 to 1 V

Sensor signal earth:

05

0V

Condition for Determination

Possible Reason

Actions

Failure duration > 1.5625 s

1) Unreliable connection of the

connecting parts

2) Open circuit of knock signal

circuit

3) Short circuit of sensor signal

circuit to earth

4) Short circuit of knock signal

circuit to other circuits

5) Sensor damaged

6) ECM’s this signal output

control interface failure

1) Connect again

2) Repair harness

3) Repair harness

4) Repair harness

5) Replace relay

6) Replace ECM

Chery T11 Service Manual Electric Injection System

44

T11 Crankshaft Position Sensor

Failure Code: P0335-0

No 58X crankshaft position sensor signal

Set emergency control scheme:  Switch on the failure lamp till the failure disappears

 NULL
 Engine is difficult to start up

Connection terminal:

MT

20U

Crankshaft Position

Sensor

Normal Measurement

Signal

High signal from crankshaft:

12

A

> 400mV sinusoidal

wave (with senor B)

Low signal from crankshaft:

28

B

> 400mV sinusoidal

wave (with senor A)

System earth wire:

73

C

0V

Condition for Determination

Possible Reason

Actions

Start up the engine

No engine speed signal

MAP decreases by 2.9509 kPa

System voltage decreases by 0.8V

Vehicle speed < 4 km/h

Failure duration > 2 s

1) Unreliable connection of the

connecting parts

2) Reserve

connection

of

high/low signal

3) Open circuit of signal circuit

4) Short circuit of signal circuit to

other circuits

5) Sensor damaged

6) ECM’s

this

signal

input

interface failure

1) Connect again

2) Repair harness

3) Repair harness

4) Repair harness

5) Replace relay

6) Replace ECM