Can anyone explain what the different displays using the diagnostics sequence through the odometer mean? A couple are self-explanatory, but most don't mean anything to me.

Here's what I'm talking about (and no, I have no idea what possessed me to try this).

When I press the odometer SELECT/RESET button, insert the key, and turn the key to the "On" position (or start the truck), all while keeping the odometer button depressed, the following message is displayed on the odometer:

test

Pressing the odometer button at this point scrolls through the following tests:

Gage (all gauges go to their max position, then min, then normal)
8`88888.8 (test of the odometer bulbs, I'd assume)
bulb (all bulbs light up - my washer fluid bulb does not work)
r 51
EE 02
dt C799
dct NONE
ENG 000.0
M 000.0
tac 0000 (unless truck is started, then it hovers around 0900)
FUEL 165
OIL 255 (with truck running, this number changes to 000)
dEG C037
br 128
batt 157
rhEo 000
rh, 000
rho 3E0 } (These three flash in sequence)
rh5 FF
Cr -h
AltF --
PA CF
Pb 19
PC 41
Pd 3F
PE0 157
PE1 000
PE2 165
PE3 128
PE4 255
PE5 000
PE6 255
PE7 255

These screens will continue to scroll if you push the odometer button until you turn the key off.

I'm once again placing my faith in this group - you've all unknowingly helped me to the extreme over the past month. I'm hoping to be able to contribute some experience soon!

Sam

2000 XLT w/ 4.6 (manu 12/99)

 

This is for 2002 F150


Odometer Display Description
GAGE Activates gauge sweep of all gauges, then displays present gauge values. Also carries out the checksum tests on ROM and EE.
All segments illuminated Illuminates all odometer segments.
bulb Illuminates all micro-controlled lamps and LEDs (low oil pressure/high coolant temperature, low fuel, service engine soon, brake, low range). Install a new bulb or LED as necessary.
r Returns to normal operation of all micro-controlled lamps and LEDs and displays hexadecimal value for ROM level (used when requesting assistance from the hotline).
EE Displays hexadecimal value for EE level (used when requesting assistance from the hotline).
dt Displays hexadecimal coding of final manufacturing test date (used when requesting assistance from the hotline).
dtc Displays continuous DTCs. Pressing the SELECT/RESET button will display any DTCs stored before proceeding to the next step.
enG Displays the speed in mph. Speedometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0.
m Displays the speed data (mph) received from the PCM via the SCP network. Displays the metric speed in kph. Speedometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0.
tAc Displays the tachometer data received from the PCM via the SCP network. Tachometer will indicate present speed within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if engine rpm is 0.
FUEL Displays the actual A/D fuel level. The fuel gauge will display a filtered fuel level value. This filter will keep the pointer from moving suddenly or erratically. If the value displayed is between 0 and 20, the circuit is shorted. Go To Pinpoint Test B.
255=open send +/-0
232=Full stop +/-10
215=Full mark +/-10
178=3/4 mark +/-8
138=1/2 mark +/-7
93=1/4 mark +/-5
41=E mark +/-4
54="LOW FUEL" (0-59)
0-18=short (0-20 max.)

OIL Displays the code (0-255) for the oil pressure switch input to the instrument cluster. Displays the oil pressure reading input to the instrument cluster. Oil pressure gauge will indicate present oil pressure. Normal oil pressure (greater than 6 psi) will display a value between 000 and 176. A low oil pressure (less than 6 psi) or an inoperative engine oil pressure switch will display a value greater than 176.
dEGC Display of engine temperature in Degrees C input from cylinder head temperature sensor. If the value displayed is -40C, the SCP message for engine temperature has not been received for more than 5 seconds. Go To Pinpoint Test E.
49 C="C" mark
60 C=Normal band start
120 C=Normal band end
119 C=Temperature warning indicator ON
"-40" C=No SCP Message for 5 sec

br Displays the brake fluid level input to the instrument cluster.
bAtt Displays the code (0-255) battery voltage input to the instrument cluster. Battery voltage gauge will indicate present battery voltage.
93-102=6.9-9.1 volts (low voltage)
115-124=8.5-10.7 volts (norm band start)
215-225=15.8-18 volts (norm band end)
230-241=16.9-19.1 volts (high voltage)

rhEo Displays the present hexadecimal value for the instrument cluster backlighting pulse width modulated (PWM) input to the instrument cluster (used when requesting assistance from the hotline).
rhi
rhS
rho PWM input duty cycle.
SCP hexadecimal dimming step (used when requesting assistance from the hotline).
Output driver counts in hexadecimal format (used when requesting assistance from the hotline).
Cr Displays the present RUN/START sense input. Display will show -L with the ignition switch in the START position and -h with the ignition switch in the RUN position.
ALtFa Displays 8-bit hexadecimal value for alternate fuel level. Display will show a value between OO and FF if the message is received.
PA-PE7 Not used.
GAGE Repeats test display cycle.

 

Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action
B1202 Fuel Sender Open Instrument Cluster Go To Pinpoint Test B.
B1204 Fuel Sender Short to Ground Instrument Cluster Go To Pinpoint Test B.
B1342 ECU is Defective Instrument Cluster CLEAR the DTCs. REPEAT the self-test. If DTC B1342, INSTALL a new instrument cluster; REFER to Instrument Cluster in this section. CLEAR the DTCs. REPEAT the self-test.
B2143 Odometer NVM Memory Failure Instrument Cluster INSTALL a new instrument cluster; REFER to Instrument Cluster in this section. CLEAR the DTCs. REPEAT the self-test.
C1284 Oil Pressure Switch Failure Instrument Cluster Go To Pinpoint Test D.
P1197 SELECT/RESET Switch Circuit Failure Instrument Cluster INSTALL a new instrument cluster; REFER to Instrument Cluster in this section. CLEAR the DTCs. REPEAT the self-test.
U1027 SCP (J1850) Invalid or Missing Data for Engine RPM PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1041 SCP (J1850) Invalid or Missing Data for Vehicle Speed PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1073 SCP (J1850) Invalid or Missing Data for Engine Coolant PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1123 SCP (J1850) Invalid or Missing Data for Odometer PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1131 SCP (J1850) Invalid or Missing Data for Fuel System AFCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1132 SCP (J1850) Invalid or Missing Data for Odometer PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.