Jeep Grand Cherokee WK. Manual — part 408

B123F-MENU SWITCH STUCK (CONTINUED)

For the Instrument Cluster circuit diagram (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHEMATICS
AND DIAGRAMS).

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on.

•

Set Condition:
The Instrument Cluster detects the Menu Switch active for greater than 20 seconds.

Possible Causes

(G102) MENU SWITCH INPUT CIRCUIT SHORT TO GROUND

UPPER SWITCH BANK

INSTRUMENT CLUSTER

Diagnostic Test

1.

CHECK FOR ACTIVE DTC

Press and release the switch three times.

Turn the ignition on.

With the scan tool, record and erase Instrument Cluster DTCs.

Turn the ignition off.

Turn the ignition on.

Wait 30 seconds.

With the scan tool, read Instrument Cluster DTCs.

Is DTC: B123F-MENU SWITCH STUCK active?

Yes

>> Go To 2

No

>> The condition that caused this code to set is not present at this time. Check for an intermittent condition

by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.

Perform BODY VERIFICATION TEST VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)

8J - 6

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

WK

B123F-MENU SWITCH STUCK (CONTINUED)

2.

CHECK OPERATION OF THE UPPER SWITCH BANK

Turn the ignition off.

Disconnect the Upper Switch Bank Harness Connector.

Turn the ignition on.

Wait 30 seconds.

With the scan tool, read Instrument Cluster DTCs.

Does the scan tool display DTC: B123F-MENU SWITCH STUCK?

Yes

>> Go To 3

No

>> Replace the Upper Switch Bank in accordance with the

service information.

Perform BODY VERIFICATION TEST VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

3.

CHECK THE (G102) MENU SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND

Turn the ignition off.

Disconnect the Instrument Cluster C1 harness connector.

Measure the resistance of the (G102) Menu Switch Input circuit for a
short to ground.

Is the resistance below 10K ohms?

Yes

>> Repair the (G102) Menu Switch Input circuit for a short to

ground.

Perform BODY VERIFICATION TEST VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

No

>> Replace the Instrument Cluster in accordance with the ser-

vice information.

Perform BODY VERIFICATION TEST VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

WK

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 7

B1240-STEP SWITCH STUCK

8J - 8

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

WK

B1240-STEP SWITCH STUCK (CONTINUED)

For the Instrument Cluater circuit diagram (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHEMATICS
AND DIAGRAMS).

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on.

•

Set Condition:
The Instrument Cluster detects the Step Switch active for greater than 20 seconds.

Possible Causes

(G103) STEP SWITCH INPUT CIRCUIT SHORT TO GROUND

UPPER SWITCH BANK

INSTRUMENT CLUSTER

Diagnostic Test

1.

CHECK FOR ACTIVE DTC

Press and release the switch three times.

Turn the ignition on.

With the scan tool, record and erase Instrument Cluster DTCs.

Turn the ignition off.

Turn the ignition on.

Wait 30 seconds.

With the scan tool, read Instrument Cluster DTCs.

Is DTC: B123F-MENU SWITCH STUCK active?

Yes

>> Go To 2

No

>> The condition that caused this code to set is not present at this time. Check for an intermittent condition

by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.

Perform BODY VERIFICATION TEST VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)

WK

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 9