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Engine will turn over but not crank.????
Engine cranks but won't start an run . Odometer
The instrument cluster receives odometer rolling count status from the PCM and stores the mileage in non-volatile memory (NVM). When the instrument cluster fails to receive the odometer rolling count status for more than two seconds, the odometer display will show dashes.
Odometer NVM Memory Failure
INSTALL a new instrument cluster. REFER to Instrument Cluster in this section. CLEAR the DTCs. REPEAT the self-test.
Taking the vehicle an having it checked for DTC'S - diagnostic trouble codes would be a good idea ! Not to autozone or advance etc... Need a professional or factory scanner to check for these codes .
I'd have to check voltage and ground for the instrument cluster. I noticed one of the fuses for your instrument cluster goes hot with the key on, same thing for ac compressor. I'd have to voltage feed to and from ignition switch for applicable fuse. Check the ignition switch wiring connector. I can't rule out ignition switch itself, at the moment.
There could be other issues?
Ignition switch faults are common on some makes and models.
Instrument cluster wiring connector problems. Sometimes if you disconnect and reconnect the instrument cluster connector, it may start working again, also, cycling the instrument cluster connector may reset, if it starts working, well, it's working for now, may quit again.
Some instrument clusters may do a self test, don't know about yours?
Press and hold odometer reset button, turn key to run position release odometer reset button, watch the odometer. Your indicator lamps may turn on and off, the gages may cycle in small increments. The cluster will exit self test on its own.
You may have to check buss circuits.
a fuse blew.
this car has an electronic dash cluster. (with brain)
first is fuses. (check them first) (2 of them)
second is scan it. scan the PCM for DTC error !
if rpm dies, for sensors the engine dies...
The PCM runs spark and injection off 2 sensor and RPM
if they die so does spark and injection.
the cluster has self test mode, try that first?
this proves the cluster is ok.
this is covered in the FSM for your JEEP
the WJ jeep
Chapter 8J covers all this.. to great details.
fuse 17 and 22 must be good. JB box, cab.
posted now 100 of times, here it is again.
The instrument cluster actuator test will put the
instrument cluster into its self-diagnostic mode. In
this mode the instrument cluster can perform a selfdiagnostic
test that will confirm that the instrument
cluster circuitry, the gauges, the PCI data bus message
controlled indicators, and the electro-luminescent
illumination lamp (if equipped) are capable of
operating as designed. During the actuator test the
instrument cluster circuitry will sweep each of the
gauge needles across the gauge faces, illuminate each
of the segments in the Vacuum-Fluorescent Display
(VFD), turn all of the PCI data bus message-controlled
indicators on and off again, and turn the electro-
luminescent illumination lamp (if equipped) on
and off again.
Successful completion of the actuator test will confirm
that the instrument cluster is operational. However,
there may still be a problem with the PCI data
bus, the Powertrain Control Module, the Airbag Control
Module (ACM), the Body Control Module (BCM),
the Controller Anti-lock Brake (CAB), the Sentry Key
Immobilizer Module (SKIM), or the inputs to one of
these electronic control modules. Use a DRBIIIt scan
tool to diagnose these components. Refer to the
appropriate diagnostic information.
If an individual indicator lamp or the electro-luminescent
illumination lamp do not illuminate during
the actuator test, the instrument cluster should be
removed. However, check that the incandescent lamp
bulb is not faulty, that the bulb holder is properly
installed on the instrument cluster electronic circuit
board, or that the electro-luminescent lamp pigtail
wire connector is properly connected to the instrument
cluster electronic circuit board before considering
instrument cluster replacement. If the bulb and
bulb holder, or the electro-luminescent lamp connection
check OK, replace the faulty instrument cluster
(1) Begin the test with the ignition switch in the
(2) Depress the odometer/trip odometer switch button.
(3) While still holding the odometer/trip odometer
switch button depressed, turn the ignition switch to
the On position, but do not start the engine.
(4) Release the odometer/trip odometer switch button.
(5) The instrument cluster will automatically
begin the actuator test sequence, as follows:
(a) The cluster will turn on, then off again each
of the PCI data bus message controlled indicators
(except Airbag) to confirm the functionality of the
indicator and the cluster control circuitry:
(b) The cluster will sweep the needles for each of
the gauges from minimum to maximum and back
to minimum to confirm the functionality of the
gauge and the cluster control circuitry:
(c) Only on models with a premium version of
the cluster, the cluster will illuminate the electroluminescent
lamp and turn it off again to confirm
the functionality of the lamp and the cluster control
(d) The cluster will sequentially step the odometer/
trip odometer VFD display from all zeros
(000000) through all nines (999999) to confirm the
functionality of all VFD segments and their control
circuitry, then display the software version number,
followed by "DONE".
(6) The actuator test is now completed. The instrument
cluster will automatically exit the self-diagnostic
mode and return to normal operation at the
completion of the test, if the ignition switch is turned
to the Off position during the test, or if a vehicle
speed message indicating that the vehicle is moving
is received from the PCM over the PCI data bus during
(7) Go back to Step 1 to repeat the test, if
if this passes and fuses are good
then you may have DTC errors scanned
if you scan it and you see comminications error from PCM to cluster, well that be it. ... and am not going into THAT>here.
that is a serious problem on any newer car,
its all electronic and FORT KNOX , tight.
The PCM runs that speedo and odemeter and are now not related
to the insides of the speedo head, like list 100 years. 1900 to now.
POWER TRAIN control MODULE, (old name ECU/ECM)
the PCM stores the miles and then sends them to the Cluster. via the comm bus. (sometimes the BCM is the middle man here) TIPM (Total Integrated Power Module)
the PCM also knows car speed, at all times, (VSS sensor)
and sends live speed data, full time to the head. so scan it.Not doing a scan is FAIL time. a NO WIN deal.
take a scan tool and scan it. see what errors you get.???????
Like VSS dead.? or comm bus errors?, or cluster module errors.?
that is first.
also on the newer cars 1998+? there is self test in the FSM.
the FSM is a book , (sold at dealers) and is factory service manual
and in said manual there are the self tests. (for sure)
only how , is a question !!!
you push buttons and key actions, then the CLUSTER does its a dance. it wags all gauges. etc.
if the speed dont wag the head is bad.
my 08 jeep, I can do this.
on older years, only the dealer scan tool DRB or? can only do that.
RTM , read the FSM or get it serviced.
there are only 2 choices, on cars now.
1 RTM or 2 get help.
You can not fix modern cars without this manual.
nor with out a scan tool. (I use Innova 3160 to cover jeeps)
my 08 FSM states: pg 1757 quote
Holding the odometer/trip odometer push button depressed while turning the ignition
switch from the OFF position to the ON position will initiate the CCN self-diagnostic actuator test.
now the full page
The instrument cluster actuator test will put the instrument cluster into its self-diagnostic mode. In this mode the
instrument cluster can perform a self-diagnostic test that will confirm that the instrument cluster circuitry, the
gauges and the indicators are capable of operating as designed. During the actuator test the instrument cluster
circuitry will position each of the gauge needles at various calibration points, illuminate each of the segments in
the Vacuum-Fluorescent Display (VFD) units, and turn all of the indicators ON and OFF again.
Successful completion of the actuator test will confirm that the instrument cluster is operational. However, there
may still be a problem with the CAN or LIN data bus, the Powertrain Control Module (PCM), the Totally
Integrated Power Module (TIPM), the Controller Antilock Brake (CAB), the All-Wheel Drive Control Module
(AWDCM), the Occupant Restraint Controller (ORC), the compass module, the Sentry Key REmote Entry
Module (SKREEM) (also known as the Wireless Control Module/WCM), or the inputs to one of these
electronic control modules. Use a diagnostic scan tool to diagnose these components. Refer to the appropriate
1. Begin the test with the ignition switch in the OFF position.
2. Depress the odometer/trip odometer switch button.
3. While still holding the odometer/trip odometer switch button depressed, turn the ignition switch to the
ON position, but do not start the engine.
4. Release the odometer/trip odometer switch button.
5. The instrument cluster will simultaneously begin to illuminate all of the operational segments in the VFD
units, and perform a bulb check of each operational LED indicator. The VFD segments and LED
indicators remain illuminated as each gauge needle is swept to several calibration points and back. If a
VFD segment or an LED indicator fails to illuminate, or if a gauge needle fails to sweep through the
calibration points and back during this test, the instrument cluster must be replaced.
6. The actuator test is now completed. The instrument cluster will automatically exit the self-diagnostic
mode and return to normal operation at the completion of the test. The actuator test will be aborted if the
ignition switch is turned to the OFF position, or if an electronic vehicle speed message indicating that the
vehicle is moving is received over the CAN data bus during the test.
7. Go back to step 1 to repeat the test, if necessary.
You may need the dealer for this. NO BUS means the body computer, engine computer, and instrument cluster are not talking to each other correctly. It could be a wiring problem or something in one of the components.
Hi, This solution will be of great help to you,even in the case of future or other dashboard problems; Instrument cluster consists of electronic analog gauges, various warning lights, and optional tachometer. Vehicles equipped with tachometer have an electronic vacuum fluorescent transmission range indicator (PRND3L),odometer and trip odometer display. Vehicles without tachometer are equipped with a cable-operated transmission range indicator. Instrument cluster is equipped with the following warning lights: Battery voltage. Cruise (speed control). Door ajar. Fasten seat belt. Lift gate ajar. Low fuel level. Low windshield and washer level. Traction Control. The Body Control Module (BCM), which receives input from various sensors, sends display information to instrument cluster and operates gauges. Instrument cluster incorporates a self-test diagnostic feature to identify electronic problems. BCM, Powertrain Control Module (PCM), and Transmission Control Module (TCM) are continuously monitored by the diagnostic system.
SELF-DIAGNOSTICS With ignition off, press and hold TRIP and RESET buttons while turning ignition switch to ON position. Continue to hold TRIP and RESET buttons until odometer window displays CODE (approximately 5 seconds). If problem exists, system will display diagnostic trouble codes. See DIAGNOSTIC CODE CHART table. If no problem exists, Code 999 (end test) will be displayed. DIAGNOSTIC CODE CHART CodeDescription 110.......Cluster Memory Fault 111.......Cluster Calibration Fault 905.......No CCD Bus Message From TCM 921.......Odometer Fault From BCM 940.......No CCD Bus Message From PCM
After diagnostic code display ends, instrument cluster will go into each of the following tests in order: Dim test. Calibration test. Odometer segment test. Electronic Transmission Range indicator segment test. Dim Test CHEC-0 will be displayed in odometer window. Instrument cluster will dim Vacuum Florescent (VF) display. If VF displays do not dim, a problem in instrument cluster exists. See BODY CONTROL COMPUTER TESTS in BODY CONTROL COMPUTER article. Calibration Test CHEC-1 will be displayed in odometer window. Each of instrument cluster gauges will move sequentially through each calibration point. See GAUGE CALIBRATIONS table. If gauge needle is not calibrated properly, a problem in instrument cluster exists. Odometer Segment Test CHEC-2 will be displayed in odometer window. Each segment of odometer will light sequentially. If any segment does not light, replace instrument cluster. Electronic Transmission Range Indicator Segment Test CHEC-3 will be displayed in odometer window. Each segment of electronic transmission range indicator will light sequentially. If any segment does not light, replace instrument cluster.
Locate the fuse in the fuse box the =Bus fuse may be blown, if the fuse is not blown then the voltage regulator on the back of the instrument panel has gone bad and you will have to pull the cluster out to fix it.
The p1687 code is a NO MIC BUS MESSAGE( mechanical instrurment cluster). When replaced the guages did you replace the whole cluster? here is the diag for this code.
48 Turn ignition on, Engine not running.
Using the DRB, erase codes.
Cycle the ignition key on and off several times.
With the DRB read PCM trouble codes. LOOK for P1687.
Did the No PCI Bus Message from MIC trouble code return?
Yes ® Go To 50
No ® Go To 49
49 Turn the ignition key on, Engine not running.
Does the Odometer in the Instrument Cluster display No Bus?
Yes ® Go To 50
No ® Go To 51
50 Turn ignition off.
Disconnect the PCM.
Disconnect the Instrument Cluster Connector.
Using an ohmmeter, measure the PCI Bus Circuit between the PCM and the
Instrument Cluster Connector.
Is the resistance below 5.0 ohms?
Yes ® Replace the Instrument Cluster.
Perform Powertrain Verification Test VER-1A.
No ® Repair the open PCI Bus Circuit.
Perform Powertrain Verification Test VER-1A.
51 Turn ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
(DRB is the factory scan tool you can use subtitute if you have access)