Chery Tiggo T11 LHD. Manual — part 28

T11 Service Manual Chassis System

Front left wheel sensor

Battery

Combination Instrument

Brake Indication Lamp

Ignition Switch

Diagnostic Interface

Brake Switch

Front right wheel sensor

Rear left wheel sensor

Rear right wheel sensor

T11 Service Manual Chassis System

2.5 Malfunction Code List

Malfunction code Malfunction name

Malfunction

code

Malfunction name

C1 200

Front-left sensor: open or

short circuit over the ground

C1 101

Excessive low battery voltage

(<9.4v)

C1 201

Front-left sensor or gear ring

interference

C1 102

Excessive High battery voltage

(＞16v)

C1 202

Air

gap

malfunction

or

incorrect gear ring

C1 604

HCU hardware malfunction

C1 203

Front right sensor: open

circuit or short circuit over

the ground

C2 112

Solenoid

valve

fuse

and

solenoid

valve

relay

malfunction

C1 204

Front

right

sensor

malfunction or gear ring

interference

C2 402

Motor malfunction

C1 205

Air

gap

malfunction

or

incorrect gear ring

C1 274

Sensor short circuit over the

ground or open circuit

C1 206

Rear-left sensor: Open circuit

or short circuit over the

ground

C1 275

Sensor signal malfunction

C1 207

Rear-left sensor malfunction

or gear ring interference

C1 208

Air

gap

malfunction

or

incorrect gear ring

C1 209

Rear-right

sensor:

open

circuit or short circuit over

the ground

C1 210

Rear-right sensor malfunction

or gear ring interference

C1 211

Air

gap

malfunction

or

incorrect gear ring

T11 Service Manual Chassis System

2.6 ABS Malfunction

Malfunction

Location

Malfunction Type

Malfunction Symptom

Warning Lamp

ABS

EDS

Vehicle harness

Brake

line

mounting

error

Wheel lockup malfunction or brake

deflection

Lamp off

Lamp off

Brake oil leakage

ABS and EBD start-up malfunction

Wire mounting error

Unable to brake

Bleeding malfunction ABS performance degradation

Lamp off Lamp off

Motor

Motor

operational

malfunction

ABS unable to start up

Lamp on Lamp off

ECU

ECU

power

supply

malfunction

ABS／EBD unable to start up

Lamp on Lamp on

Valve

power

line

malfunction

ABS／EBD unable to start up

Lamp on Lamp on

Motor

power

line

malfunction

ABS unable to start up

Lamp on Lamp off

ECU imperfect earth

ABS／EBD unable to start up

Lamp on Lamp on

ECU malfunction

ABS／EBD unable to start up

Lamp on Lamp on

Wheel speed sensor

Sensor short circuit or

broken circuit

1 malfunction occurs: ABS unable to

start-up

2 malfunctions occur: ABS ／EBD

unable to start up

Lamp on Note)

Gear ring malfunction

Sensor interference

Air gap malfunction

ABS wrong start up

ABS／EBD unable to start up

Lamp on

Note)

G Sensor

Short

circuit/broken

circuit

ABS unable to start up

Lamp on Lamp off

Note) when one sensor fails: EBD warning lamp is off (EBD starts up),

When two sensors fail: EBD warning lamp is on (EBD does not start up).

T11 Service Manual Chassis System

2.7 Troubleshooting

Malfunction Malfunction Type

Measures

C1 200

C1 203

C1 206

C1 209

Sensor short circuit ／

broken circuit

1. Measure the voltage between harness plug pin2, 5, 20, 22 and

the ground (normal voltage scope: 2-4V).

2. Sensor voltage less than 2V indicates sensor broken circuit or

ground

wire

short

circuit

or

sensor

connector

plug

disengagement.

3. Replace sensor if broken circuit occurs, however, for short

circuit, only after confirming the short-circuit condition can it be

decided whether replace the sensor or not.

4. Sensor voltage exceeding 4v indicates battery or igniter short

circuit, and after confirming the short-circuit condition can it be

decided whether replace the sensor or not. If malfunction still

exists after confirming the described item 1 and 2 have no

troubles, then ECU internal problems shall be taken in account.

The anode or cathode of

sensor

has

short

circuit/broken circuit over

the ground

C1 202

C1 205

C1 208

C1 211

Air gap malfunction

1. Inspect the air gap to ensure it meets the specification.

2. Inspect the resistances of both sides of the sensor to ensure

they meet the specification.

3. Employ analyzer to ensure the normal condition of the speed of

four wheels (slowly increase to 60Km/h)

4. Inspect the gear ring to confirm whether it meets the

specification or not

5. If malfunction still occurs when the above-described items are

normal, it might be ECU internal circuit troubles.

Excessive air gap, or

sensor

short

circuit

(resistance is zero), or gear

ring

is

not

properly

mounted.

C1 201

C1 204

C1 207

C1 210

Gear

ring

and

sensor

interference

1. Inspect the air gap to ensure it conforms to standard.

2. Inspect the gear ring and gear wheel to ensure they conform to

specification

3. Inspect the area in-between gear ring and sensor to see whether

there exist impurities or not.

4. Inspect sensor resistance to see whether it is normal or not

5. If malfunction still occurs but without the above problems, it

might be ECU internal circuit troubles.

Install a nonstandard gear

ring

C1 101

C1 102

Battery

voltage

malfunction

1. Inspect the main ground wire to ensure the contact is in good

condition (check the resistances between chassis ground wire and

No. 8／25 of ABS to see whether they are less than 1 ohm).

2. Check the voltage of the No. 4 pin of the joint and the ground

to see whether it is within normal voltage scope or not (normal

voltage is 9.4~16V).

Excessive high or low

battery volt

C1 402

Motor

fuse

or

motor

malfunction

1. Firstly confirm when the malfunction occurs, during parking or

at a speed over 20Km／h. (If it is uncertain, after eliminating

the malfunction then reconfirms it.)

2. Inspect the voltage between No. 25 pin of harness plug and

ground. If voltage inspection confirms that harness and fuse are

normal, it can be confirmed it belongs to motor malfunction.

C1 112

Valve

fuse

relay

malfunction

1. If it belongs to a) condition, inspect the voltage between No. 9

pin of harness and ground wire. If there is no voltage, ensure the

normal condition of fuse and harness.

2. If the above voltage is normal, then it can be confirmed that

there exists malfunction inside the ABS control unit, so it shall be

replaced.

a) Main relay or fuse

disconnection

b) Main relay short circuit

C1 604

ECU internal circuit or

valve coil malfunction

Replace