Chery Tiggo T11 LHD. Manual — part 29

T11 Service Manual Chassis System

C1 274

G sensor short circuit or

broken circuit

1. Firstly disconnect the connector at harness side, and

connect the harness sensor battery anode with the No. 15

pin of short cathode, and then perform ground connection.

Finally measure the malfunction voltage of No. 13 pin short

circuit or broken circuit as well as the voltage of No. 15 pin

(normal voltage scope is between 0.6 ~ 4.5V).

2. Sensor voltage less than 2v indicates sensor broken

circuit or ground wire short circuit or sensor connecting

piece plug disengagement.

3. Confirm whether there is supply power (IGN1) for G

sensor (normal voltage scope shall be between 10 - 16V).

4. If there is no problem occurs to item 1, 2 and 3, but there

still exist errors, it can be confirmed as ECU internal circuit

troubles.

The anode or cathode of

sensor has short circuit ／

broken circuit over the ground

T11 Service Manual Chassis System

2.8 Diagnosis Procedures

2.8.1 Sensor Short Circuit/ Open Circuit Malfunction C1 200, C1 203, C1 206, C1 209

Remark: Reference of connecting piece classification

Harness sensor

Yes

After removing ECU connecting
pieces, check the resistance of
corresponding sensors

Within 700~1500Ω or not?

Confirm whether each pin at harness
side is connected with ground wire
and is electrified or not.

Yes

①
No

Remove the connecting piece between
harness and sensor and then confirm that how
many pins offsetting in the assembling.

Is the status all right?

Correct the pin of connecting
piece, and properly fix the
connecting piece

No

Confirm whether the two lines between the
pin at harness side and the connecting piece
to fix sensor is electrified or not.

No

Confirm and repair the part of
disconnection and then replace
the wiring.

Check the resistance of both terminals of the sensor

Within 700~1500Ω or not?

No

Replace the sensor

Yes

Recheck from item

①

It is not electrified?

Remove the connecting plugs (B, C) at sensor side and
confirm whether each connecting piece A at harness
side is electrified with ground wire or not.

No

Yes

Confirm whether each pin at
harness side is electrified to
battery electrodes or not.

Yes

Replace harness wiring

No

Confirm whether the connecting
piece C of sensor side is electrified
with battery anode or not

It is not electrified?

No

Rec

h

ec

k

fro

m
item
②

It is not electrified?

No

Yes

Replace ECU

Remove the connecting plugs (B, C) at sensor side and
confirm whether each connecting piece A at harness
side is electrified with ground wire or not.

Yes

Replace the sensor

Yes

No

It is not electrified?

Confirm whether the connecting
piece C of sensor side is electrified
with battery anode or not

No

Yes

Replace the sensor

Rec

h

ec

k

fro

m
item
③

Replace harness wiring

T11 Service Manual Chassis System

2.8.2 Gear Ring and Sensor Interference C1 201, C1 204, C1 207, C1 210

Measure the air gap via gap gauge

Remove

the

wheel

corresponding

to

different

malfunction codes, and inspect

gear ring and sensor.

Adjust gap to 0.2 ~ 0.8mm

Within 0.2~0.8mm or not?

There exists impurity or not?

Confirm the condition of the tooth form

of gear ring, and ensure whether there

exists deformation or impurity or not

It is normal or not?

not?

Eliminate impurities

Replace gear ring

Replace ECU

No

Yes

Yes

No

No

Yes

T11 Service Manual Chassis System

2.8.3 Air Gap Malfunction C1 202, C1 205, C1 208 and C1 211.

Measure the air gap via gap gauge

Remove

the

wheel

corresponding

to

different

malfunction codes, and inspect

gear ring and sensor.

Adjust gap to 0.2 ~ 0.8mm

Within 0.2~0.8mm or not?

Replace HECU

After dismounting the connecting piece

(A) at harness side, and check the

resistance between pins corresponding to

different malfunction codes.

Within 700~1500Ω or not?

After

dismounting

the

connecting piece (B, C) at

sensor side, confirm if both

terminals

of

the

pins

corresponding to malfunction

codes of the connecting piece

A

at

harness

side

are

electrified.

It is electrified or not?

No

Yes

①Yes

No

No

Yes

Repair and replace the

wiring

Replace the sensor

Measure the resistances

of both terminals of the

pins corresponding to

different

malfunction

codes at the connecting

piece C at sensor side.

It is less than 700Ω or

more than 1500Ω?

Recheck

from

item

①

Yes

No