Chery Tiggo 5 (T21). Manual - part 91

06–

206

06

a. Remove engine speed sensor.
b. Check and clean engine speed sensor and installation area, and check for damage, foreign matter or 

excessive movement, etc. that cause signal incorrectness.

a. Check resistance between engine speed sensor 

terminals 1 and 2.



Normal resistance: 860 Ω ± 20% (at normal temperature)

a. Disconnect ECM connector E-035.
b. Check wire harness between engine speed sensor 

connector terminals and ECM connector terminals.
Check for Open

10

Check installation of engine speed sensor

Clean or replace engine speed sensor

NG

11

Check resistance of engine speed sensor

OK

-

+

3

2

1

RT21060210

Replace engine speed sensor

NG

12

Check engine speed sensor circuit

OK

E-016

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

1 2 3

-

+

RT21065042

Multimeter 

Connection

Condition

Specified 

Condition

E-016 (1) - E-035 

(32)

Always

Continuity

E-016 (2) - E-035 

(33)

06–

207

06

Check for Short

a. Rotate crankshaft, and check crankshaft and flywheel gear ring for damage, foreign matter, etc. that cause 

signal incorrectness.

a. Check for timing deviation.

Multimeter 

Connection

Condition

Specified 

Condition

E-016 (1) or 

E-035 (32) - Body 

ground

Always

No continuity

E-016 (1) or 
E-035 (32) - 

Battery positive

E-016 (2) or 

E-035 (33) - Body 

ground

E-016 (2) or 
E-035 (33) - 

Battery positive

Replace wire harness or connector 
(engine speed sensor - ECM)

NG

13

Check crankshaft and flywheel gear ring

OK

Clear off debris and clean flywheel gear 
ring. Replace flywheel if necessary (

See 

page 07-42

)

NG

14

Check engine timing

OK

Correct engine timing

NG

OK

06–

208

06

a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC P0016-00 or P0018-00 still exists.

15

Check for DTCs

Replace ECM

NG

System is operating normally. 
Reassemble vehicle and perform a road test to confirm that malfunction reported by customer has 
been repaired.

OK

06–

209

06

SQR484F ENGINE MANAGEMENT SYSTEM

Engine Problem Symptom Diagnosis

Perform primary inspection first before performing malfunction diagnosis procedures:

1. Confirm that engine malfunction indicator operates normally;
2. Using diagnostic tester, check that no error messages are recorded;
3. Confirm that malfunction complained by customer is present, and confirm the condition under which the 

malfunction occurs.

Then, perform appearance inspection:

1. Check fuel line for leakage;
2. Check if vacuum line is broken or twisted, and if connection is correct;
3. Check intake line for blockage, air leakage, crush or damage;
4. Check if high-voltage cable of ignition system is broken or deteriorated, and if ignition sequence is correct;
5. Check if wire harness ground points are clean and secure;
6. Check each sensor or actuator connector for looseness or poor contact.

HINT:
If above conditions exist, repair the trouble areas first. Otherwise, it will affect the repair work for the following 
trouble diagnosis.

Diagnostic Help

1. Confirm that there are no trouble records for engine; 
2. Confirm that complained trouble symptoms are present;
3. There are no abnormal conditions after performing the inspection according to above procedures;
4. During servicing, do not ignore vehicle maintenance condition, cylinder pressure, mechanical ignition 

timing and fuel condition, etc. that can affect the system;

5. Replace ECM, and perform a test. If the trouble can be eliminated, the trouble area is in ECM; if the trouble 

symptom still exists, reuse the original ECM, repeat the procedures, and perform service again.

Problem Symptoms Table

Symptom

Suspected Area

See page

Engine does not crank or cranks slowly
while starting

Battery

06-212

Starter motor

Wire harness or ignition switch

Engine mechanical

Engine cranks normally but cannot start
successfully while starting

No fuel in tank

06-214

Fuel pump

Engine speed sensor

Ignition coil

Engine mechanical

Difficult to start with hot engine

Water in fuel

06-216

Fuel pump

Coolant temperature sensor

Fuel pressure regulator

Ignition coil