ACTIVE BONNET WARNING LIGHT DOES NOT ILLUMINATE [ACTIVE BONNET]

id0803f1001000

Description

•  The active bonnet warning light does not turn on even when the ignition is switched ON (engine off or on).

Possible cause

•  Active bonnet warning light circuit malfunction

•  Active bonnet warning light (LED) malfunction

•  Instrument cluster malfunction

•  Communication error between SAS control module and instrument cluster

•  SAS control module malfunction

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER

•  Switch the ignition ON (engine off or on).

•  Do other warning and indicator lights illuminate?

Yes

Go to the next step.

No

Inspect the instrument cluster power supply system and ground system, then go to Step 3.

2

INSPECT DTCs IN SAS CONTROL MODULE

•  Inspect the DTC for the SAS control module on-board diagnostic system.
(See DTC INSPECTION [SAS CONTROL MODULE (ACTIVE BONNET)].)

•  Have DTCs been recorded in memory?

Yes

Perform the applicable DTC inspection.

(See DTC TABLE [SAS CONTROL MODULE (ACTIVE BONNET)].)

Go to the next step.

No

Go to the next step.

3

VERIFY WHERE MALFUNCTION IS IN WARNING LIGHTS INDICATION CIRCUIT OR ELSEWHERE

•  Turn on all warning lights and indicator lights using the instrument cluster PID WL+IL of simulation function using the M-MDS.
(See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

•  Do other waning and indicator lights illuminate?

Yes

Go to the next step.

No

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

Then go to Step 5.

4

INSPECT DTCs IN INSTRUMENT CLUSTER

•  Inspect the DTC for the instrument cluster on-board diagnostic system.
(See DTC INSPECTION [INSTRUMENT CLUSTER].)

•  Have DTCs been recorded in memory?

Yes

Perform the applicable DTC inspection, then go to the next step.

(See DTC TABLE [INSTRUMENT CLUSTER].)

No

Go to the next step.

5

VERIFY THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR

•  Switch the ignition off.

•  Switch the ignition ON (engine off or on).

•  Does the active bonnet warning light illuminate for approx. 6 s and turn off?

Yes

Verify that there are no DTCs in the memory. If there are no DTCs, the troubleshooting is completed.

No

Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.

Description	• The active bonnet warning light does not turn on even when the ignition is switched ON (engine off or on).
Possible cause	• Active bonnet warning light circuit malfunction • Active bonnet warning light (LED) malfunction • Instrument cluster malfunction • Communication error between SAS control module and instrument cluster • SAS control module malfunction

Step	Inspection		Action
1	INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER • Switch the ignition ON (engine off or on). • Do other warning and indicator lights illuminate?	Yes	Go to the next step.
1		No	Inspect the instrument cluster power supply system and ground system, then go to Step 3.
2	INSPECT DTCs IN SAS CONTROL MODULE • Inspect the DTC for the SAS control module on-board diagnostic system. (See DTC INSPECTION [SAS CONTROL MODULE (ACTIVE BONNET)].) • Have DTCs been recorded in memory?	Yes	Perform the applicable DTC inspection. (See DTC TABLE [SAS CONTROL MODULE (ACTIVE BONNET)].) Go to the next step.
2		No	Go to the next step.
3	VERIFY WHERE MALFUNCTION IS IN WARNING LIGHTS INDICATION CIRCUIT OR ELSEWHERE • Turn on all warning lights and indicator lights using the instrument cluster PID WL+IL of simulation function using the M-MDS. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) • Do other waning and indicator lights illuminate?	Yes	Go to the next step.
3		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.) Then go to Step 5.
4	INSPECT DTCs IN INSTRUMENT CLUSTER • Inspect the DTC for the instrument cluster on-board diagnostic system. (See DTC INSPECTION [INSTRUMENT CLUSTER].) • Have DTCs been recorded in memory?	Yes	Perform the applicable DTC inspection, then go to the next step. (See DTC TABLE [INSTRUMENT CLUSTER].)
4		No	Go to the next step.
5	VERIFY THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR • Switch the ignition off. • Switch the ignition ON (engine off or on). • Does the active bonnet warning light illuminate for approx. 6 s and turn off?	Yes	Verify that there are no DTCs in the memory. If there are no DTCs, the troubleshooting is completed.
5		No	Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.