LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2000 >> ZX2 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Module Communications Network) >> Diagnostic Trouble Code Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) identification and repair, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
AIR SUSPENSION CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1318 Battery Voltage Low (1)
B1342 Air Suspension Control Module Defective (1)
B1485 Brake Pedal Input Circuit Battery Short (2)
B1566 Door Ajar Circuit Short To Ground (3)
B2140 Initialization Failure (Vehicle Ride Height Not Programmed) (1)
C1439 Vehicle Acceleration EEC-V Circuit Failure (1)
C1724 Air Suspension Height Sensor Power Circuit Failure (1)
C1726 Air Suspension Rear Pneumatic Failure (1)
C1760 Air Suspension Rear Height Sensor High Signal Circuit Failure (1)
C1770 Air Suspension Vent Solenoid Output Circuit Failure (1)
C1790 Air Suspension Left Rear Air Spring Solenoid Output Circuit Failure (1)
C1795 Air Suspension Right Rear Air Spring Solenoid Output Circuit Failure (1)
C1830 Air Suspension Compressor Relay Circuit Failure (1)
C1917 Steering Electronic Variable Orifice (EVO) Out-Of-Range Fault (1)
(1) See appropriate ELECTRONIC article in SUSPENSION.
(2) Using NGS tester, perform air suspension control module self-test. Ensure brake pedal is not pressed. If B1485 is retrieved again, repair Brake Pedal Position (BPP) switch circuit. See EXTERIOR LIGHTS in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
(3) See AUTOLAMP SYSTEMS - BLACKWOOD & F150 PICKUP .
4-WHEEL ANTI-LOCK BRAKE SYSTEM MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1342 Anti-Lock Brake Control Module Defective (1)
C1220 Yellow Anti-Lock Brake System (ABS) Warning Indicator Failure (1)
C1194/C1196 Left Front Dump Valve (1)
C1198/C1200 Left Front Isolation Valve (1)
C1202/C1204 Rear Dump Valve (1)
C1206/C1208 Rear isolation Valve (1)
C1210/C1212 Right Front Dump Valve (1)
C1214/C1216 Right Front Isolation Valve (1)
C1155 Left Front Wheel Speed Sensor (Electrical/Static) (1)
C1158/C1233 Left Front Wheel Speed Sensor (Dynamic) (1)
C1145 Right Front Wheel Speed Sensor (Electrical/Static) (1)
C1148/C1234 Right Front Wheel Speed Sensor (Dynamic) (1)
C1230 Rear Wheel Speed Sensor (Electrical/Static) (1)
C1229/C1237 Rear Wheel Speed Sensor (Dynamic) (1)
C1095/C1096 Pump Motor (1)
C1113/C1115 Internal Power Relay (1)
C1185 Open Internal Power Relay (1)
C1169 Excessive Dump Time (1)
C1184 ABS System Timeout (1)
C1222 Wheel Speed Error (Dynamic) (1)
C1226 Brake Warning Light On (1)
(1) See appropriate ANTI-LOCK article in BRAKES.
DRIVER'S SEAT MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1342 ECU Defective (1)
B1529 Memory Set Switch Circuit Short To Power (2)
B1533 Memory 1 Switch Circuit Short To Power (2)
B1537 Memory 2 Switch Circuit Short To Battery (2)
B1663 Driver's Seat Front Up/Down Motor Stalled (2)
B1664 Driver's Seat Rear Up/Down Motor Stalled (2)
B1665 Driver's Seat Forward/Backward Motor Stalled (2)
B1667 Driver's Mirror Up/Down Motor Stalled (3)
B1668 Driver's Mirror Right/Left Motor Stalled (3)
B1669 Passenger's Mirror Up/Down Motor Stalled (3)
B1670 Passenger's Mirror Right/Left Motor Stalled (3)
B1676 Battery Pack Voltage Out Of Range (4)
B1697 Driver's Mirror/Passenger's Switch Circuit Short To Power (3)
B1711 Driver's Seat Front Up Switch Circuit Short To Power (2)
B1715 Driver's Seat Front Down Switch Circuit Short To Power (2)
B1719 Driver's Seat Forward Switch Circuit Short To Power (2)
B1723 Driver's Seat Rearward Switch Circuit Short To Power (2)
B1727 Driver's Seat Rear Up Switch Circuit Short To Power (2)
B1731 Driver's Seat Rear Down Switch Circuit Short To Power (2)
B1735 Driver's Mirror Vertical Switch Circuit Short To Battery (3)
B1739 Driver's Mirror Horizontal Switch Circuit Short To Power (3)
B1743 Passenger's Mirror Vertical Switch Circuit Short To Power (3)
B1747 Passenger's Mirror Horizontal Switch Circuit Short To Power (3)
B1751 Park/Neutral Switch Circuit Short To Power (2)
B1950 Seat Rear Up/Down Potentiometer Feedback Circuit Failure (2)
B1952 Seat Rear Up/Down Potentiometer Feedback Circuit Short To Power (2)
B1954 Seat Front Up/Down Potentiometer Feedback Circuit Failure (2)
B1956 Seat Front Up/Down Potentiometer Feedback Circuit Short To Power (2)
B1962 Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Failure (2)
B1964 Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Short To Power (2)
B1987 Pedal Forward/Rearward Motor Stalled (5)
B1988 Pedal Position Forward Switch Circuit Short To Power (5)
B1989 Pedal Position Rearward Switch Circuit Short To Power (5)
B1990 Pedal Forward/Rearward Potentiometer Feedback Circuit Failure (5)
B1991 Pedal Forward/Rearward Potentiometer Feedback Circuit Short To Power (5)
(1) Using NGS tester, retrieve and document all continuous DTCs. Perform Driver's Seat Module (DSM) self-test. If DTC B1342 is retrieved again, replace DSM.
(2) Check seat or memory concern. See POWER SEATS - BLACKWOOD .
(3) Check mirror concern. See POWER MIRRORS - BLACKWOOD .
(4) Check charging system concern. See GENERATORS & REGULATORS article in ELECTRICAL. If charging system is okay, repair power and ground circuits to Driver Seat Module (DSM).
(5) Repair appropriate circuit as necessary. See ADJUSTABLE PEDALS ASSEMBLY SYSTEMS- BLACKWOOD article.
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1249 Blend Door Short/Failure (1)
B1251 A/C In-Car Temperature Sensor Open Circuit (1)
B1253 A/C In-Car Temperature Sensor Short To Ground (1)
B1255 A/C Ambient Temperature Sensor Open Circuit (1)
B1257 A/C Ambient Temperature Sensor Short To Ground (1)
B1261 A/C Solar Radiation Sensor Circuit Short To Ground (1)
U1073 SCP Invalid Or Missing Data For Engine Coolant (2)
U1341 SCP Invalid Data For Vehicle Speed (2)
(1) Repair climate control system concern. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(2) Perform quick test. See QUICK TEST in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
GENERIC ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1302 Accessory Delay Relay Coil Circuit Failure (1)
B1304 Accessory Delay Relay Coil Circuit Short To Power (1)
B1313 Battery Saver Relay Coil Circuit Failure (1)
B1315 Battery Saver Relay Coil Circuit Short To Power (1)
B1317 Battery Voltage High (2)
B1318 Battery Voltage Low (2)
B1322 Driver's Door Ajar Circuit Short To Ground (3)
B1323 Door Ajar Lamp Circuit Failure (3)
B1325 Door Ajar Lamp Circuit Short To Power (3)
B1330 Passenger's Door Ajar Circuit Short To Ground (3)
B1334 Decklid Ajar Rear Door Circuit Short To Ground (3)
B1338 Door Ajar Right Rear Circuit Short To Ground (3)
B1340 Chime Input Request Circuit Short To Ground (4)
B1342 ECU Defective (5)
B1345 Heated Backlight Input Circuit Short To Ground (6)
B1347 Heated Backlight Relay Circuit Failure (6)
B1349 Heated Backlight Relay Short To Power (6)
B1352 Ignition Key-In Circuit Failure (4)
B1355 Ignition RUN Circuit Failure (7)
B1359 Ignition RUN/ACC Circuit Failure (7)
B1365 Ignition Start Circuit Short To Battery (7)
B1371 Illuminated Entry Relay Circuit Failure (8)
B1373 Illuminated Entry Relay Short To Power (8)
B1398 Driver's Window One Touch Down Relay Circuit Failure (1)
B1400 Driver's Power Window One Touch Down Relay Circuit Short To Power (1)
B1405 Driver's Power Window Down Circuit Short To Power (1)
B1426 Safety Belt Lamp Circuit Short To Power (9)
B1428 Safety Belt Lamp Circuit Failure (9)
B1431 Front Wiper Brake/Run Relay Circuit Failure (10)
B1432 Front Wiper Brake/Run Relay Short To Power (10)
B1434 Front Wiper Hi/Low Speed Relay Circuit Failure (10)
B1436 Front Wiper Hi/Low Speed Relay Circuit Short To Power (10)
B1438 Front Wiper Mode Select Switch Circuit Failure (10)
B1441 Front Wiper Mode Select Switch Input Short To Ground (10)
B1446 Front Wiper Park Sense Circuit Failure (10)
B1450 Front Wiper/Wash Interval Delay Switch Input Circuit Failure (10)
B1453 Front Wiper/Wash Interval Delay Switch Input Short To Ground (10)
B1454 Low Washer Fluid Indicator Circuit Failure (10)
B1456 Low Washer Fluid Indicator Circuit Short To Power (10)
B1458 Front Wiper/Washer Pump Motor Relay Circuit Failure (10)
B1460 Front Wiper/Washer Pump Motor Relay Coil Short To Power (10)
B1462 Safety Belt Switch Circuit Failure (4)
B1466 Front Wiper Hi/Low Speed Not Switching (10)
B1473 Front Wiper Motor Low Speed Circuit Failure (10)
B1476 Front Wiper Motor High Speed Circuit Failure (10)
B1482 Wiper Washer Fluid Level Sensor Circuit Short To Ground (10)
B1483 Brake Pedal Input Circuit Failure (8)
B1485 Brake Pedal Input Circuit Short To Power (8)
B1574 Door Ajar Left Rear Circuit Short To Ground (3)
B1577 Lamp Park Input Circuit Short To Power (4)
B1610 Illuminated Entry Input Short To Ground (3)
B1840 Front Wiper Power Circuit Failure (10)
P0500 Vehicle Speed Signal Circuit Failure (10)
(1) Repair power windows. See POWER WINDOWS - BLACKWOOD article.
(2) Check charging system concern. See GENERATORS & REGULATORS article in ELECTRICAL. If charging system is okay, repair power and ground circuits at Generic Electronic Module (GEM).
(3) Repair door ajar concern. See AUTOLAMP SYSTEMS - BLACKWOOD & F150 PICKUP article.
(4) Repair warning chime concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.
(5) Using NGS tester, retrieve and document all continuous DTCs. Perform Generic Electronic Module (GEM) self-test. If DTC B1342 is retrieved again, replace GEM.
(6) Repair defogger concern. See HEATED GLASS - BLACKWOOD article.
(7) Repair ignition switch or circuit. See STEERING COLUMN SWITCHES - BLACKWOOD article. See POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
(8) Repair interior illumination concern. See INTERIOR LIGHTS article.
(9) Repair instrument cluster concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.
(10) Repair wiper/washer system. See WIPER WASHER SYSTEM - BLACKWOOD article.
HYBRID ELECTRONIC CLUSTER DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1202 Fuel Sender Open (1)
B1204 Fuel Sender Short To Ground (1)
B1213 Anti-Theft Number Of Programmed Keys Below Minimum (2)
B1232/B2103 Antenna Not Connected Or Damaged Transceiver (2)
B1342 ECU Defective (3)
B1600 PATS Ignition Key Transponder Signal Not Received (2)
B1601 PATS Received Incorrect Key Code (Unprogrammed Encoded Ignition Key) (2)
B1602 PATS Received Invalid Key Code Format (2)
B1681 PATS Transceiver Signal Not Received (2)
B2139 PCM ID Mismatch Between PCM And HEC (2)
B2141 NVM Configuration Failure (2)
B2143 Odometer NVM Memory Failure (4)
C1284 Oil Pressure Switch Failure (1)
P1197 SELECT/RESET Switch Circuit Failure (4)
U1027 SCP Invalid Or Missing Data For Engine RPM (5)
U1041 SCP Invalid Or Missing Data For Vehicle Speed (5)
U1073 SCP Invalid Or Missing Data For Engine Coolant (5)
U1123 SCP Invalid Or Missing Data For Odometer (5)
U1132 SCP Invalid Or Missing Data For Odometer (5)
U1147 SCP Invalid Or Missing Data For Vehicle Security (2)
(1) Repair instrument cluster concern. See ANALOG INSTRUMENT PANELS - BLACKWOOD article.
(2) Repair anti-theft concern. See PASSIVE ANTI-THEFT SYSTEMS - BLACKWOOD & F150 article.
(3) Using NGS tester, retrieve and document all continuous DTCs. Perform Hybrid Electronic Cluster (HEC) self-test. If DTC B1342 is retrieved again, replace instrument cluster.
(4) Replace instrument cluster. Clear DTCs and retest system.
(5) Perform quick test. See QUICK TEST in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
CENTRAL SECURITY MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1309 Power Door Lock Circuit Short To Ground (1)
B1341 Power Door Unlock Circuit Short To Ground (1)
B1342 ECU Defective (1)
B1485 Brake Pedal Input Circuit Short To Power (1)
B1526 Keyless Entry Short Circuit To Ground (1)
B2276 Less Than Two Transmitters Programmed (1)
B2425 Remote Transmitter Out Of Synchronization (1)
B2477 Module Configuration Failure (1)
(1) Repair keyless entry system concern. See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEM article.
RESTRAINT CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description Perform Test
..... RCM Disconnected, Inoperative Or Lost/Low Ignition Feed (2)
B1342 ECU Defective (3)
B1921 RCM Bracket Ground Resistance High (3)
C1414 Incorrect Vehicle Identification Code (3)
B1887 Driver's Side Air Bag Circuit Shorted To Ground (3)
B1916 Driver's Side Air Bag Circuit Shorted To Power Or Ignition (3)
B1888 Passenger's Side Air Bag Circuit Shorted To Ground (3)
B1925 Passenger's Side Air Bag Circuit Shorted To Power (3)
B1932 Driver's Side Air Bag Circuit Resistance High (3)
B1933 Passenger's Side Air Bag Circuit Resistance High (3)
B1934 Driver's Side Air Bag Circuit Resistance Low (3)
B1935 Passenger's Side Air Bag Circuit Resistance Low (3)
B2441 Driver Seat Side Impact Sensor Mounting Failure (3)
B2440 Passenger Seat Side Impact Sensor Mounting Failure (3)
U2017 Driver's Side Crash Sensor Communication Fault (3)
U2018 Passenger's Side Crash Sensor Communication Fault (3)
B1993 Driver's Side Air Bag Circuit Shorted To Ground (3)
B1992 Driver's Side Air Bag Circuit Shorted To Power (3)
B1994 Driver's Side Air Bag Circuit Resistance High (3)
B1995 Driver's Side Air Bag Circuit Resistance Low (3)
B1997 Passenger's Side Air Bag Circuit Shorted To Ground (3)
B1996 Passenger's Side Air Bag Circuit Shorted To Power (3)
B1998 Passenger's Side Air Bag Circuit Resistance High (3)
B1999 Passenger's Side Air Bag Circuit Resistance Low (3)
B1892 Air Bag Tone Warning Indicator Circuit Shorted To Ground Or Open (3)
B1891 Air Bag Tone Warning Indicator Circuit Shorted To Power (3)
B1869 Air Bag Indicator Inoperative (3)
B1870 Air Bag Indicator Shorted To Power (3)
..... No Communication With RCM (2)
B1885 Driver Pretensioner Circuit Resistance Low (3)
B1877 Driver Pretensioner Circuit Resistance High (3)
B1881 Passenger Pretensioner Circuit Resistance High (3)
B1886 Passenger Pretensioner Circuit Resistance Low (3)
B1878 Driver Pretensioner Circuit Shorted To Battery Or Ignition Voltage (3)
B1879 Driver Pretensioner Circuit Shorted To Ground (3)
B1882 Passenger Pretensioner Circuit Shorted To Battery Or Ignition Voltage (3)
B1883 Passenger Pretensioner Circuit Shorted To Ground (3)
(1) DTCs are listed in order of importance. Repair DTCs in order listed.
(2) This DTC is diagnosed using air bag indicator light. See AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.
(3) Repair supplemental restraint system concern. See AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.
PARKING AID MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Perform Test
B1299 Power Supply Sensor Short To Ground (1)
B1342 ECU Defective (2)
B2373 LED #1 Short To Voltage (1)
B2477 Module Configuration Failure (1)
C1699 Left Rear Sensor Short To Voltage (1)
C1700 Left Rear Sensor Circuit Failure (1)
C1701 Left Rear Sensor Circuit Fault (1)
C1702 Right Rear Sensor Circuit Short To Voltage (1)
C1703 Right Rear Sensor Circuit Failure (1)
C1704 Right Rear Sensor Circuit Fault (1)
C1705 Left Rear Center Sensor Short To Voltage (1)
C1706 Left Rear Center Sensor Circuit Failure (1)
C1707 Left Rear Center Sensor Fault (1)
C1708 Right Rear Center Sensor Short To Voltage (1)
C1709 Right Rear Center Sensor Circuit Failure (1)
C1710 Right Rear Center Sensor Fault (1)
C1742 Rear Sounder Circuit Failure (1)
C1743 Rear Sounder Circuit Short To Voltage (1)
C1748 Switch Input Circuit Short To Ground (1)
(1) Repair system concern. See PARKING AID SYSTEMS - BLACKWOOD under WARNING SYSTEMS for further diagnostics.
(2) Using NGS tester, retrieve and document all continuous DTCs. Perform Parking Aid Module (PAM) self-test. If DTC B1342 is retrieved again, replace PAM.
scientia non olet · About LEMON Manuals