Chery Tiggo 5 (T21). Service manual — part 90

06–

202

06

a. Turn ignition switch to ON, start the engine and observe the signal waveform of camshaft position sensor

with an oscilloscope.

a. Disconnect intake camshaft position sensor connector

E-020 (1).

b. Disconnect exhaust camshaft position sensor connector

E-015 (2).

c. Check camshaft position sensor connectors.

2

Check camshaft position sensor signal waveform

Oscilloscope

Normal Waveform

10.0 ms

2.00 V

RT21060230

Go to step 8

OK

3

Check camshaft position sensor connector

NG

RT21060351

2

1

Repair or replace connector

NG

OK

06–

203

06

a. Turn ignition switch to ON.
b. Check voltage between terminal 3 of camshaft position

sensor connector E-020 or E-015 and body ground.

a. Turn ignition switch to LOCK.
b. Disconnect ECM connector E-035.
c. Check wire harness between camshaft position sensor

connector terminals and ECM connector terminals.
Check for Open

Check for Short

4

Check camshaft position sensor power supply voltage

3

2

1

E-020

E-015

-

+

V

RT21065044

Multimeter

Connection

Condition

Specified

Condition

E-020 (3) or

E-015 (3) - Body

ground

Ignition switch ON

5 V

Go to step 6

OK

5

Check camshaft position sensor power supply circuit

NG

E-020

E-035

37 38 39 40 41 42 43 44 45 46

47

48

25 26 27 28 29 30 31 32 33 34

35

36

13 14 15 16 17 18 19 20 21 22

23

24

1

2

3

4

5

6

7

8

9 10

11

12

3

2

1

E-015

-

+

RT21065045

Multimeter

Connection

Condition

Specified

Condition

E-020 (3) - E-035

(34)

Always

Continuity

E-015 (3) - E-035

(34)

Always

Continuity

Multimeter

Connection

Condition

Specified

Condition

E-020 (3), E-015

(3) or E-035 (34) -

Body ground

Always

No continuity

E-020 (3), E-015

(3) or E-035 (34) -

Battery positive

Always

No continuity

Repair or replace wire harness or
connector (camshaft position sensor -
ECM)

NG

06–

204

06

a. Check wire harness between camshaft position sensor

connector terminals and ECM connector terminals.
Check for Open

Check for Short

Replace ECM

6

Check camshaft position sensor signal circuit and ground circuit

OK

E-020

E-035

37 38 39 40 41 42 43 44 45 46

47

48

25 26 27 28 29 30 31 32 33 34

35

36

13 14 15 16 17 18 19 20 21 22

23

24

1

2

3

4

5

6

7

8

9 10

11

12

3

2

1

E-015

-

+

RT21065046

Multimeter

Connection

Condition

Specified

Condition

E-020 (2) - E-035

(29)

Always

Continuity

E-015 (2) - E-035

(41)

E-020 (1), E-015

(1) - E-035 (31)

Multimeter

Connection

Condition

Specified

Condition

E-020 (2) or

E-035 (29) - Body

ground

Always

No continuity

E-020 (2) or
E-035 (29) -

Battery positive

E-015 (2) or

E-035 (41) - Body

ground

E-015 (2) or
E-035 (41) -

Battery positive

E-020 (1), E-015

(1) or E-035 (31) -

Body ground

E-020 (1), E-015

(1) or E-035 (31) -

Battery positive

Replace wire harness or connector
(camshaft position sensor - ECM)

NG

OK

06–

205

06

a. Remove camshaft position sensor.
b. Check and clean camshaft position sensor and installation area, and check for damage, foreign matter and

excessive movement, etc. that cause signal incorrectness.

a. Turn ignition switch to ON, start the engine and observe the signal waveform of engine speed sensor with

an oscilloscope.

a. Turn ignition switch to LOCK.
b. Disconnect engine speed sensor connector E-016.
c. Check engine speed sensor connector.

7

Check camshaft position sensor

Clean installation area or replace
camshaft position sensor

NG

Replace ECM

8

Check engine speed sensor signal waveform

OK

Oscilloscope

Normal Waveform of Engine Speed Senor Signal

RT21060200

Go to step 15

OK

9

Check engine speed sensor connector

NG

Repair or replace engine speed sensor
connector

NG

OK