Turn the ignition switch to the OFF position or press and hold the SELECT/RESET button for 3 or more seconds and release to exit HEC Dealer Test Mode. If no DTCs related to the
concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
Instrument Cluster Diagnostic Trouble Code (DTC) Index
Instrument Cluster Diagnostic Trouble Code (DTC) Index
Instrument Cluster Parameter Identification (PID) Index
Instrument Cluster Parameter Identification (PID) Index
54=LOW FUEL (0-59)
0-18=short (0-20max.)
OIL Displays the code (0-250) for the oil pressure switch input to the HEC. 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 or an inoperative engine oil pressure switch (less than 6 psi) will display a value greater than 176.
dEGC Display of engine temperature in Degrees C input from cylinder head temperature sensor.
49 C="C" mark
60 C=Normal band start
120 C=Normal band end
-40 C=No SCP message for 5 seconds
bAtt Displays the code (0-255) for the battery voltage input to the HEC. 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 decimal rheostat dimming input, 0-255 (used when requesting assistance from the hotline).
rhi
rhS
rho
Not used.
Cr Displays the present RUN/START sense input. Display will show -h for high input with the ignition switch in the START position and -L for low input with the ignition
switch in the RUN position.
PA-PE7 Not used.
GAGE Repeats test display cycle.
NGS Displayed
DTC
Dealer Test Mode
Displayed DTC Description Source Action
B1202 9202 Fuel Sender Open Circuit HEC GO to Pinpoint Test C.
B1204 9204 Fuel Sender Short to Ground HEC GO to Pinpoint Test C.
B1213 9213 Anti-Theft Number of Programmed Keys is Below Minimum HEC REFER to Section 419-01.
B2103 or B1232 A103 or 9232 Antenna Not Connected — Defective Transceiver HEC REFER to Section 419-01.
B1317 9317 Battery Voltage High HEC REFER to Section 414-00.
B1318 9318 Battery Voltage Low HEC REFER to Section 414-00.
B1342 9342 ECU Is Defective HEC INSTALL a new Instrument Cluster; REFER to Instrument
Cluster. TEST the system for normal operation.
B1356 9356 Ignition Run Circuit Open HEC REFER to Section 211-05.
B1364 9364 Ignition Start Circuit Open HEC REFER to Section 211-05.
B1600 9600 PATS Ignition Key Transponder Signal is Not Received —
Damaged Key or Non-PATS Key
HEC REFER to Section 419-01.
B1601 9601 PATS Received Incorrect Key-Code from Ignition Key
Transponder (Unprogrammed Encoded Ignition Key)
HEC REFER to Section 419-01.
B1602 9602 PATS Received Invalid Format of Key-Code From Ignition Key
Transponder (Partial Key Read)
HEC REFER to Section 419-01.
B1681 9681 PATS Transceiver Signal is Not Received (Not Connected,
Damaged, or Wiring)
HEC REFER to Section 419-01.
B2139 A139 PCM ID Does Not Match Between Instrument Cluster and PCM HEC REFER to Section 419-01.
B2141 A141 NVM Configuration Failure (No PCM ID Exchange Between
Instrument Cluster and PCM)
HEC INSTALL a new instrument cluster; REFER to Instrument
Cluster. CLEAR the DTCs. REPEAT the self-test.
B2143 A143 NVM Memory Failure HEC INSTALL a new instrument cluster; REFER to Instrument
Cluster. CLEAR the DTCs. REPEAT the self-test.
C1284 5284 Oil Pressure Switch Failure HEC GO to Pinpoint Test E.
U1027 D027 SCP Invalid or Missing Data for Engine RPM J1850 REFER to Section 418-00.
U1041 D041 SCP Invalid or Missing Data for Vehicle Speed J1850 REFER to Section 418-00.
U1043 D043 SCP Invalid or Missing Data for Traction Control J1850 REFER to Section 418-00.
U1073 D073 SCP Invalid or Missing Data for Engine Coolant J1850 REFER to Section 418-00.
U1123 D123 SCP Invalid or Missing Data for Odometer J1850 REFER to Section 418-00.
U1147 D147 SCP Invalid or Missing Data for Vehicle Security PCM/J1850 REFER to Section 419-01.
U1262 D262 Missing SCP Message J1850 REFER to Section 418-00.
PID Description Expected Value
CCNT Number of Continuous DTCs in Module one count per bit
COOLANT Engine Coolant Level notOK, OK
1999 Mustang Workshop Manual
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXB/~MUS~LEN/20/
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