Geely CK (2008). Manual part — 64

253

Yes: continue with next step.

No: check the circuit, repair it and continue with step (5).

8

Turn the ignition switch to LOCK.

9

Check the continuity of the terminal of instrument connector and that of diagnostic interface (check the

two ends of K line).

Yes: continue with next step.

No: repair or replace the wire harness. Continue with step (5).

Make sure to disconnect the negative terminal cable from the battery and wait for at least 60s.Disconnect

the ECU connector.

11

Disconnect the connectors of the instrument cluster

12

Are the connector terminals 5, 7 and 9 and those of instrument cluster continuity?

Yes: continue with next step.

No: replace the wire harness, and then continue with step (5).

13

Remove ECU and see whether the terminals are in good condition and whether the shorting bar is

broken.

Yes: replace the ECU.

No: reconnect the ECU connector, and then continue with next step.

(3) Make sure of the nonrecurrence of the trouble after repair

1

Turn the ignition switch to LOCK.

2

Disconnect the negative (-) terminal cable from the battery and wait for at least 60s.

3

Connect all the ECU connectors.

4

Connect the connector of driver airbag assembly.

5

Connect the connector of passenger airbag assembly.

6

Connect the connectors of driver and passenger seat belt pretensioners (vehicle with pretensioner).

7

Connect clock spring connector.

8

Connect the negative (-) terminal cable of the battery.

9

Turn the ignition switch to ON.

Is the SRS warning light working normal?

Yes: the trouble is eliminated. Explain the repair procedures to the Customer.

No: recheck symptoms of the trouble. Repeat these procedures from the first step if the trouble reoccurs.

254

3.Internal trouble

4. Power trouble

DIAGNOSTIC PROCEDURES

(1) Check battery

Is the battery voltage measured higher than 9V?

Yes: continue with next step.

No: low battery voltage, check the charging/discharging system.

See Chapter I, Charging System-Battery Checking

(2) Check the wire harness between battery and fuse box

Remove fuse box and turn the ignition switch ON, without loosening connector.

Measure and see if the electrical potential between two terminals of the fuse box is more than 9V.

Yes: continue with next step.

No: check the wire harness.

DTC B1620 Internal trouble of SRS uni

t

CAUTION

●

Condition for running the DTC is to inspect the diagnostic trouble code that

may not appear prior to this test. Performing this test may results in body injury or

damaged system due to misoperations. Therefore, preparations must be made

b

efore checking.

●

Internal circuit trouble of SRS ECU

Possible Cause

Internal trouble of SRS unit

Operation

Replace the SRS unit, see SRS System, Removal & Installation of SRS Unit

Checking Conditions

DTC B1112 Low power source voltage of SRS ECU

CAUTION

Condition for running the DTC is to inspect the diagnostic trouble code that may not

appear prior to this test. Performing this test may results in body injury or damaged

system due to misoperations. Therefore, preparations must be made before

checking.

●

The electrical potential between pins 5 and 6 of the connector of SRS unit is

less than 9V.

●

Low battery voltage

Trouble in wire harness between battery and SRS ECU

Checking Conditions

Possible Cause

255

(3) Check the wire harness between the fuse box and the connector of the SRS unit

CAUTION

If it is not handled properly, the airbag assembly may be triggered and deployed, leading to serious injury to a

person. Therefore, prior to handling, read the service cautions carefully. See service cautions for SRS.

1

Turn the ignition switch to LOCK.

2

Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.

3

Remove steering column hood.

4

Loosen the connector of the clock spring.

5

Remove glove box (along with passenger airbag assembly)

6

Loosen passenger airbag assembly connectors.

7

Remove left trim plate.

8

Loosen all the SRS unit connectors.

9

Reconnect the negative (-) terminal cable of the battery and turn ignition switch ON, check whether the

electrical potential between pins 5 and 6 (ground) of the connector of SRS unit is higher than 9V.

Yes: continue with next step.

No: replace the wire harness.

Turn the ignition switch to LOCK.

11

Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.

12

Remove left trim plate.

13

Disconnect the adaptor connector of SRS unit.

14

Reconnect the battery negative (-) terminal cable and turn the ignition switch ON, check whether the

voltage between the corresponding pin of the connector and the pin (ground) is higher than 9V.

Yes: completion of trouble diagnosis.

No: replace the wire harness.

5. Driver side trouble

DTC

B1 346

B1 347

B1 348

B1 349

CAUTION
●

If it is not handled properly, the airbag assembly may be triggered and deployed,

leading to serious injury to a person. Therefore, prior to handling, read the service cautions

carefully.

See service cautions for SRS

If there is driver airbag

●

The resistance between terminals of the SRS unit connectors is out of range.

The wire harness of the driver airbag of SRS is short or open circuited.

●

Driver airbag assembly trouble.

●

Clock spring internal trouble.

●

Trouble of the connector of the circuit between clock spring and SRS ECU.

●

The wire harness between clock spring and SRS ECU is open or short-circuited.

●

Incorrect insertion of the connector of the driver airbag generator of SRS.

Driver airbag trouble (high or low resistance, short circuit, ground, etc.)

Checking Conditions

Possible cause

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DIAGNOSTIC PROCEDURES

(1) Check clock spring

CAUTION

If it is not handled properly, the airbag assembly may be triggered and deployed, leading to serious injury to a

person. Therefore, prior to handling, read the service cautions carefully.

See service cautions for SRS.

Do the related parts of the clock spring work normal? (Are the pins correctly correlated? There should

be no unnecessary short or open circuit, etc). If possible, use a new clock spring to replace the present

one.

Normal: continue with next step.

Abnormal: replace the clock spring.

See SRS-Clock Spring, Removal & Installation.

(2) Ascertain the trouble exists in driver airbag assembly or other parts

1

Replace with a new driver airbag assembly.

2

Reconnect the negative (-) terminal cable of the battery.

3

Turn the ignition switch ON.

4

Any DTC displayed? Can it be cleared?

Yes: replace the driver airbag assembly.

See SRS- Driver Airbag Assembly, Removal & Instillation.

No: continue with next step.

(3) Check the connector of clock spring wire harness

1

Turn the ignition switch to LOCK.

2

Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.

3

Remove steering column hood.

4

Loosen the connector of the clock spring.

5

Are the connectors of the clock spring normal? (Are the pins correctly correlated? There should be no

unnecessary short or open circuit, etc). If possible, use a new clock spring to replace the present one.

Normal: continue with next step.

Abnormal: replace the wire harness.

See SRS-Clock Spring, Removal & Installation.

(4) Check the wire harness between clock spring and SRS ECU

1

Turn the ignition switch to LOCK.

2

Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.

3

Remove glove box (along with passenger airbag assembly).

4

Loosen passenger airbag assembly connectors.