Instrument cluster diagnostics

***Bosshogg*** · 09-27-2006, 11:18 PM

I ran across something that most people dont know about on these trucks. I Have tried this trick on an 01 and my 02 truck, but I can't say if it works on any older models. Beware your trip odometer will be reset after the test. Start the test with the ignition off. Press the odo/trip odometer button and while holding it, turn the ignition on but do not start the truck. Continue holding the button until "chec" appears in the odometer window. The instrument cluster will then begin its self diagnostic mode. when it is finished, the door alarm will chime several times and the normal pre-start lights will be lit. If there is a problem, it will spit out a 3 digit code in the odometer window. Record it and then push the trip button to continue the test.

INSTRUMENT CLUSTER FAILURE MESSAGE
Message Description Correction
110 A failure has been identified in the cluster
CPU, RAM, or EEPROM.
1. Replace the faulty cluster.

900 The CCD data bus is not operational.
1. Check the CCD data bus connections at the
cluster.
2. Check the cluster fuses.
3. Check the CCD data bus bias.
4. Check the CCD data bus voltage.
5. Check the CCD data bus terminations.

920 The cluster is not receiving a vehicle speed
message from the PCM.
1. Check the PCM software level and reflash if
required.
2. Use a DRBIIIT scan tool to verify that the
vehicle speed message is being sent by the
PCM.

921 The cluster is not receiving a distance pulse
message from the PCM.
1. Check the PCM software level and reflash if
required.
2. Use a DRBIIIT scan tool to verify that the
distance pulse message is being sent by the
PCM.

940 The cluster is not receiving an airbag lamp-on
message from the ACM.
1. Check the CCD data bus connections at the
ACM.
2. Check the ACM fuse.

950 The cluster is not receiving an ABS lamp-on
message from the CAB.
1. Check the CCD data bus connections at the
CAB.
2. Check the CAB fuse.

999 An error has been discovered.
1. Record the failure message.
2. Depress the trip odometer reset button to
continue the Self-Diagnostic Test.

Hope this helps someone!!!

__________________
02.5 2500 4X4 reg cab white HO 6spd
Tapped Edge Comp with TST plate and Bosch RV 275 sticks. Stacks by Hogg innovations to roll the coal...
Hogg innovations lift pump/filter big line setup, Multi function shifter stick,Solenoid High Idle
LED's all over, and CF stickers too!!

mrmajestic · 09-28-2006, 10:03 PM

Great information, thank you.

__________________
1999 2500 Quad Cab, 5spd, 4X4, 3.55 LSD, 152K miles, Buckstop w/9K winch, Torque King M/S, K&N FI Perf Kit, 275HP Inj., TST PM3/Smarty stack, PDR boots, Wabro/Areomotive and 1/2" line, PAC Brake w/SWAC, Summit Turbo back 4" pipe, EZ drain, silencer ring MIA, pyro/boost/FP gauges, SBC Con OFE w/HD Adj Hyd, Brite Box, DSS, Centramatics, BFG LT285/75R16/E

***Mopar1973Man*** · 11-29-2006, 10:35 PM

I add to this...

I've got a page with pictures showing the same thing but I don't have the troubleshooting part though...

Cluster Test

Maybe a little visual will help people...:thumbsup

__________________

Michael Nelson - 2002 Dodge Cummins

For Technical Assistance With Your 24V 2nd Generation Cummins - Click Here! Or Search CF.Com for an Answer

Remember to smack the THANKS! button for those that helped you or you think that post is helpful to others!

09-27-2006, 11:18 PM	#1 (permalink)
*Bosshogg* Hogg Innovations Join Date: Mar 2006 Location: West Carrollton, OH Posts: 641 Thanks: 0 Thanked 0 Times in 0 Posts Bosshogg's Truck Pics	Instrument cluster diagnostics I ran across something that most people dont know about on these trucks. I Have tried this trick on an 01 and my 02 truck, but I can't say if it works on any older models. Beware your trip odometer will be reset after the test. Start the test with the ignition off. Press the odo/trip odometer button and while holding it, turn the ignition on but do not start the truck. Continue holding the button until "chec" appears in the odometer window. The instrument cluster will then begin its self diagnostic mode. when it is finished, the door alarm will chime several times and the normal pre-start lights will be lit. If there is a problem, it will spit out a 3 digit code in the odometer window. Record it and then push the trip button to continue the test. INSTRUMENT CLUSTER FAILURE MESSAGE Message Description Correction 110 A failure has been identified in the cluster CPU, RAM, or EEPROM. 1. Replace the faulty cluster. 900 The CCD data bus is not operational. 1. Check the CCD data bus connections at the cluster. 2. Check the cluster fuses. 3. Check the CCD data bus bias. 4. Check the CCD data bus voltage. 5. Check the CCD data bus terminations. 920 The cluster is not receiving a vehicle speed message from the PCM. 1. Check the PCM software level and reflash if required. 2. Use a DRBIIIT scan tool to verify that the vehicle speed message is being sent by the PCM. 921 The cluster is not receiving a distance pulse message from the PCM. 1. Check the PCM software level and reflash if required. 2. Use a DRBIIIT scan tool to verify that the distance pulse message is being sent by the PCM. 940 The cluster is not receiving an airbag lamp-on message from the ACM. 1. Check the CCD data bus connections at the ACM. 2. Check the ACM fuse. 950 The cluster is not receiving an ABS lamp-on message from the CAB. 1. Check the CCD data bus connections at the CAB. 2. Check the CAB fuse. 999 An error has been discovered. 1. Record the failure message. 2. Depress the trip odometer reset button to continue the Self-Diagnostic Test. Hope this helps someone!!! __________________ 02.5 2500 4X4 reg cab white HO 6spd Tapped Edge Comp with TST plate and Bosch RV 275 sticks. Stacks by Hogg innovations to roll the coal... Hogg innovations lift pump/filter big line setup, Multi function shifter stick,Solenoid High Idle LED's all over, and CF stickers too!!

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09-28-2006, 10:03 PM	#2 (permalink)
mrmajestic Cummins Nut Join Date: Nov 2005 Location: Lititz, PA Posts: 492 Thanks: 0 Thanked 0 Times in 0 Posts mrmajestic's Truck Pics	Great information, thank you. __________________ 1999 2500 Quad Cab, 5spd, 4X4, 3.55 LSD, 152K miles, Buckstop w/9K winch, Torque King M/S, K&N FI Perf Kit, 275HP Inj., TST PM3/Smarty stack, PDR boots, Wabro/Areomotive and 1/2" line, PAC Brake w/SWAC, Summit Turbo back 4" pipe, EZ drain, silencer ring MIA, pyro/boost/FP gauges, SBC Con OFE w/HD Adj Hyd, Brite Box, DSS, Centramatics, BFG LT285/75R16/E

11-29-2006, 10:35 PM	#3 (permalink)
*Mopar1973Man* www.Mopar1973Man.com Join Date: Feb 2006 Location: New Meadows, Idaho Posts: 11,043 Thanks: 209 Thanked 584 Times in 457 Posts Mopar1973Man's Truck Pics	I add to this... I've got a page with pictures showing the same thing but I don't have the troubleshooting part though... Cluster Test Maybe a little visual will help people...:thumbsup __________________ Michael Nelson - 2002 Dodge Cummins For Technical Assistance With Your 24V 2nd Generation Cummins - Click Here! Or Search CF.Com for an Answer Remember to smack the *THANKS!* button for those that helped you or you think that post is helpful to others!