Jeep Wrangler TJ. Manual — part 24
Symptom:
*POOR SOUND QUALITY
POSSIBLE CAUSES
CHECK AUDIO DTCS
CHECK SELECTED RADIO EQ CURVE
SET THE RADIO EQ CURVE
VERIFY SOUND PERFORMANCE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, check for any audio related DTC’s.
Are any Audio related DTCs set?
All
Yes
→ Refer to the Audio category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, enter body, Instrument Cluster then miscellaneous.
Check the radio EQ curve setting and follow the instructions on the DRBIII
t.
Is the radio EQ curve correct for the audio combination the vehicle is equipped with?
All
Yes
→ Refer to the service information for problems related to poor
sound quality and perform the appropriate checks.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition on.
With the DRBIII
t, enter body, Instrument Cluster then miscellaneous.
Set the radio EQ curve. Follow the instructions on the DRBIII
t.
Cycle the ignition switch from off to on.
Check the radio EQ curve setting.
Is the radio EQ curve correct for the audio combination the vehicle is equipped with?
All
Yes
→ Refer to the service information for problems related to poor
sound quality and perform the appropriate checks.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
93
AUDIO
Symptom:
*CHIME INOPERATIVE AT ALL TIMES
POSSIBLE CAUSES
INSTRUMENT CLUSTER - CHIME INOPERATIVE
TEST
ACTION
APPLICABILITY
1
If there are no possible causes remaining, view repair.
All
Repair
Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
94
CHIME
Symptom:
*CHIME INOPERATIVE WITH DRIVER SEAT BELT UNFASTENED
POSSIBLE CAUSES
SEAT BELT SWITCH STATUS WRONG
SEAT BELT SWITCH SHORTED
SEAT BELT SWITCH SENSE WIRE SHORT TO GROUND
INSTRUMENT CLUSTER - SEAT BELT SWITCH SHORTED
TEST
ACTION
APPLICABILITY
1
Ensure the drivers seat belt is unfastened.
With the DRB III select: Electro Mech Cluster Input Output.
Turn the ignition on.
Read the Driver Belt SW status.
Does the DRB III show Driver Belt SW: CLOSED?
All
Yes
→ Go To 2
No
→ Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
2
Disconnect the Seat Belt Switch connector.
With the DRB III select: Electro Mech Cluster Input Outputs.
Turn the ignition on.
Read the Driver Belt Sw status.
Does the DRB III show Seat Belt SW: CLOSED?
All
Yes
→ Go To 3
No
→ Repair Seat Belt switch pigtail wiring for a short to ground or
replace the Seat Belt buckle assembly.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Remove the Instrument Cluster from the instrument panel.
Disconnect the Seat Belt Switch connector.
Measure the resistance between ground and the Seat Belt Switch Sense circuit at the
Instrument Cluster C2 connector.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Seat Belt Switch Sense wire for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
95
CHIME
Symptom:
*CHIME INOPERATIVE WITH EXTERIOR LAMPS ON AND DRIVER
DOOR OPEN
POSSIBLE CAUSES
VERIFY KEY-IN IGNITION, DRIVER’S DOOR OPEN CHIME OPERATION
HEADLAMP SWITCH OUTPUT OPEN
MIC - CHIME INOP WITH EXTERIOR LAMPS ON
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Ensure the key is in the ignition switch all the way.
Open the driver door.
Does the chime sound?
All
Yes
→ Go To 2
No
→ Refer to symptom *CHIME INOPERATIVE WITH KEY IN IG-
NITION, DRIVER’S DOOR OPEN in the CHIME category.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Remove the Instrument Cluster From the I/P.
Turn the Exterior Lamps on.
Measure the voltage of the Headlamp Switch Output circuit in the Instrument
Cluster C1 connector.
Is the voltage above 10.0 volts?
All
Yes
→ If there are no possible causes remaining, replace the Instrument
Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Headlamp Switch Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
96
CHIME
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