Instrument Cluster (IC) Dealer Test Mode

NOTE: The table below uses XXX's to represent a numeric or alpha-numeric value. The value may display the same amount of characters represented by the XXX's or there may be more/less depending on the type of display. For example: F XXX may display F 125.

To enter the IC dealer test mode, press and hold the trip odometer reset button and turn the ignition switch to the RUN position. Release the trip odometer reset button when tESt is displayed in the integrated display area. This takes between 5 and 8 seconds (the IC enters the gauge sweep test). Press the trip odometer reset button to move through the tests. To exit the IC dealer test mode, hold the trip odometer reset button for greater than 3 seconds or turn the ignition switch to the OFF position.

INSTRUMENT CLUSTER DEALER TEST MODE REFERENCE CHART

IC Display	Description
gAgE	Carries out a gauge sweep of all gauges and then displays the present value.
All segments illuminated	Carries out a prove-out of all trip/ODO segments.
LEd	Illuminates all micro-controlled LEDs.
r XXXX	Displays the current Read-Only Memory (ROM) level in decimal format. The display alternates with FAIL at 1 Hz 50% duty cycle if the checksum is incorrect.
ErXXX	Displays the target Non-Volatile Memory (NVM) ROM in hexadecimal format.
E XX	Displays the NVM Electrically Erasable Programmable Read-Only Memory (EEPROM) in decimal format. The display alternates with FAIL at 1 Hz 50% duty cycle if the checksum is incorrect.
dtStXX	Displays the single byte hexadecimal coding of the manufacturing start date.
dtXXXX	Displays the 2-byte hexadecimal coding of the manufacturing start date.
dtc XXXX	Displays the stored DTCs in hexadecimal format. If no DTCs are present, nonE is displayed.
SPXXXX	Displays the current speed signal input in mph.
SPXXXX	Displays the current speed signal input in km/h.
SgXXXX	Displays the speedometer driver gauge counts in hexadecimal format.
tAXXXX	Displays the engine speed input value in decimal format.
tgXXXX	Displays the tachometer gauge driver counts in hexadecimal format.
OD XXX	Displays the odometer rolling count in decimal format.
F XXX	Displays the present fuel level ratio in decimal format. A short circuit is displayed 000-009, normal is displayed 010-254, an open circuit is displayed 255.
FgXXXX	Displays the fuel gauge output driver counts in hexadecimal format.
FL XX	Displays the fuel flow rolling count message data value in hexadecimal format.
FP XX	Displays the average fuel percent level (as displayed by cluster). Normal range is 00 to 64. Invalid displays FF.
XXX C	Displays the engine temperature messaged input value in decimal format. Normal range is -40 to 254. Invalid range is 255.
XXX Cg	Displays the temperature gauge driver counts in hexadecimal format.
btXXX	Displays the present battery voltage input in decimal format.
dtEXXX	Displays the Distance To Empty (DTE) in miles.
rAFEXXX	Displays the rolling average fuel economy in mpg.
PATSXX	Displays Passive Anti-Theft System (PATS) key read flags.
An-XXX	Displays the hexadecimal value of the A/D port (n represents the port number).
P01, P02, P05, P08, P10, P11, P12, P13, P16, P19, P20, P21, P22 and P23-XX	Displays the hexadecimal value of micro-port readings.
gAgE	Repeats the test display cycle.