Instrument cluster dummy lights

[BenHemi05]

Hey y’all!! Just bought an ‘05 1500 5.7 HEMI 2 wheel lifted and I have a check gages light on. It’s on because the volt meter on the cluster is all the way to the left like it isn’t reading anything. And I have no issues starting or with electrical power. Any ideas on how to proceed?


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[TERRY G ABNEY]

check the battery , have it tested and the alternator as well ,,you can run a cluster test,,get in shut the door an hold the trip reset button in an turn the key on do not start, after that let off the button and it should run a self test on the cluster and see if all gauges go through the test properly

 

[BenHemi05]

check the battery , have it tested and the alternator as well ,,you can run a cluster test,,get in shut the door an hold the trip reset button in an turn the key on do not start, after that let off the button and it should run a self test on the cluster and see if all gauges go through the test properly

I’ll try the cluster test that’s a cool trick. The battery and alternator are good...


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[BenHemi05]

check the battery , have it tested and the alternator as well ,,you can run a cluster test,,get in shut the door an hold the trip reset button in an turn the key on do not start, after that let off the button and it should run a self test on the cluster and see if all gauges go through the test properly

So I just tried this and I got c-code b7 01... and the volt meter cycled all the way through... what does that mean?


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[TERRY G ABNEY]

obtain C-codes perform a Gauge Cluster Check: hold trip and turn key to run. Gauge lights will turn on to verify function, sweep gauges will move through sequence to very function, codes will display in ODO.

INSTRUMENT CLUSTER FAILURE MESSAGE
Fault Code Description
01 Airbag warning indicator output circuit shorted.
02 Airbag warning indicator output circuit open.
03 ABS indicator output circuit shorted. .
04 ABS indicator output circuit open.
05 MIL indicator output circuit shorted.
06 MIL indicator output circuit open.
07 Wait to start indicator circuit shorted.
08 Wait to start indicator circuit open.
0B BTSI output circuit shorted or open.
22 Headlamp switch input circuit shorted.
23 Headlamp switch input circuit open.
24 Turn hazard switch input circuit shorted.
25 Turn hazard swiitch inpot circuit open.
27 Courtesy/dome output circuit shorted or open.
28 Glovebox/map lamp output circuit shorted or open.
29 Cargo lamp output circuit shorted or open.
40 Wiper switch input circuit shorted.
41 Wiper switch input circuit open.
42 Wash/beam input circuit shorted.
60 Passenger door lock switch input circuit shorted.
61 Passenger door lock switch input circuit open.
62 Passenger door lock switch input circuit stuck.
63 Driver door lock switch input circuit shorte.
65 Driver door lock switch input circuit stuck.
66 All door lock output circuit shorted to ground or voltage.
67 All door unlock output circuit shorted to ground or voltage.
68 Driver door unlock output circuit shorted to ground or voltage.
6C Driver cylinder lock switch input circuit shorted.
6E Driver cylinder lock switch input circuit stuck.
80 Incorrect odometer value found. .
81 Remote radio switch input circuit high.
82 Remote radio switch stuck.
A0 Internal module FLASH memory checksum failure.
A1 Internal module bootloader failure.
A3 Battery voltage open.
A5 TCCM messages not received.
A7 VIN checksum error.
A8 VIN previously stored.
A9 PCI bus internal failure.
AA PCM messages not received.
AB TCM messages not received.
AC ABS messages not received.
AD FCM messages not received.
AE ACM messages not received.
AF SKIM messages not received.
B0 RKE fob batteries low.
B1 RKE module communication link.
00 Done All Diagnostic Trouble Codes (DTC) have been displayed.

 

[TERRY G ABNEY]

well your gauge is ok for one since it cycled , are you sure it was b7 ? the other two digits are just key cycle and if problem is gone then after 100 cycles code clears

Are you sure about battery an alt ? Also check all grounds . clean all and make sure of being tight an secure at battery and all places on were grounds wires are attached to inner fender an any other place you are aware of

 

[BenHemi05]

obtain C-codes perform a Gauge Cluster Check: hold trip and turn key to run. Gauge lights will turn on to verify function, sweep gauges will move through sequence to very function, codes will display in ODO.

INSTRUMENT CLUSTER FAILURE MESSAGE
Fault Code Description
01 Airbag warning indicator output circuit shorted.
02 Airbag warning indicator output circuit open.
03 ABS indicator output circuit shorted. .
04 ABS indicator output circuit open.
05 MIL indicator output circuit shorted.
06 MIL indicator output circuit open.
07 Wait to start indicator circuit shorted.
08 Wait to start indicator circuit open.
0B BTSI output circuit shorted or open.
22 Headlamp switch input circuit shorted.
23 Headlamp switch input circuit open.
24 Turn hazard switch input circuit shorted.
25 Turn hazard swiitch inpot circuit open.
27 Courtesy/dome output circuit shorted or open.
28 Glovebox/map lamp output circuit shorted or open.
29 Cargo lamp output circuit shorted or open.
40 Wiper switch input circuit shorted.
41 Wiper switch input circuit open.
42 Wash/beam input circuit shorted.
60 Passenger door lock switch input circuit shorted.
61 Passenger door lock switch input circuit open.
62 Passenger door lock switch input circuit stuck.
63 Driver door lock switch input circuit shorte.
65 Driver door lock switch input circuit stuck.
66 All door lock output circuit shorted to ground or voltage.
67 All door unlock output circuit shorted to ground or voltage.
68 Driver door unlock output circuit shorted to ground or voltage.
6C Driver cylinder lock switch input circuit shorted.
6E Driver cylinder lock switch input circuit stuck.
80 Incorrect odometer value found. .
81 Remote radio switch input circuit high.
82 Remote radio switch stuck.
A0 Internal module FLASH memory checksum failure.
A1 Internal module bootloader failure.
A3 Battery voltage open.
A5 TCCM messages not received.
A7 VIN checksum error.
A8 VIN previously stored.
A9 PCI bus internal failure.
AA PCM messages not received.
AB TCM messages not received.
AC ABS messages not received.
AD FCM messages not received.
AE ACM messages not received.
AF SKIM messages not received.
B0 RKE fob batteries low.
B1 RKE module communication link.
00 Done All Diagnostic Trouble Codes (DTC) have been displayed.

Thanks for sharing this. I should’ve posted that I’ve run across this several times. But, I don’t see a b7 code....


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[BenHemi05]

No real update for this. Sold the truck and never found the cause[emoji51][emoji51]


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