2008 Mazda B4000 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Restraint Control Module DTCS

RESTRAINT CONTROL MODULE (RCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Retrieved From Action
Continuous Lamp The Air Bag Indicator is Illuminated Continuously RCM See PINPOINT TEST 1: THE AIR BAG INDICATOR IS ILLUMINATED CONTINUOUSLY/NO COMMUNICATION WITH THE RESTRAINTS CONTROL MODULE (RCM) .
B1118 Passenger Front Crash Sensor Mount / Communication Fault RCM See PINPOINT TEST 2: DTC B1118 - PASSENGER FRONT CRASH SENSOR MOUNT/COMMUNICATION FAULT .
B1135 Passenger Front Crash Sensor Internal Fault RCM INSTALL a new RH front impact severity sensor. See FRONT IMPACT SEVERITY SENSOR .
B1231 Event Threshold Exceeded (Crash Data Memory Full) RCM INSTALL a new RCM and impact sensors. See INSPECTION AND REPAIR AFTER A SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPLOYMENT .
B1231 Event Threshold Exceeded (Crash Data Memory Full) OCSM INSTALL a new OCS service kit and CLEAR all RCM and OCSM DTCs. See OCCUPANT CLASSIFICATION SENSOR and INSPECTION AND REPAIR AFTER A SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPLOYMENT .
B1317 Battery Voltage High RCM CHECK battery voltage; to be below 18.0 volts. See SYMPTOM TROUBLESHOOTING CHART - CHARGING SYSTEM .
B1317 Battery Voltage High OCSM
NOTE:
  • If no on-demand or continuous DTC is present in the RCM and DTC B1317 is only present in the OCSM continuous, CLEAR all OCSM DTCs and PROVE OUT the system.
CHECK battery voltage; to be below 18.0 volts. See SYMPTOM TROUBLESHOOTING CHART - CHARGING SYSTEM .
B1318 Battery Voltage Low RCM CHECK battery voltage; to be above 8.0 volts. See SYMPTOM TROUBLESHOOTING CHART - CHARGING SYSTEM .
B1318 Battery Voltage Low OCSM
NOTE:
  • If no on-demand or continuous DTC is present in the RCM and DTC B1318 is only present in the OCSM continuous, CLEAR all OCSM DTCs and PROVE OUT the system.
CHECK battery voltage; to be above 8.0 volts. See SYMPTOM TROUBLESHOOTING CHART - CHARGING SYSTEM .
B1342 ECU (RCM) is Faulted RCM INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) .
B1342 ECU (OCSM) is Faulted OCSM INSTALL a new OCS service kit. See OCCUPANT CLASSIFICATION SENSOR .
B1884 PAD Warning Lamp Circuit Failure RCM See PINPOINT TEST 3: DTCS B1884 - PAD WARNING LAMP CIRCUIT FAILURE .
B1890 PAD Warning Lamp Circuit Short to Battery RCM See PINPOINT TEST 4: DTC B1890 - PAD WARNING LAMP CIRCUIT SHORT TO BATTERY .
B2290 Occupant Classification System Fault RCM
NOTE:
  • If no on-demand or continuous DTC is present in the OCSM and DTC B2290 is only present in the RCM as a continuous DTC, CLEAR all RCM DTCs and PROVE OUT the system. The OCSM reported a fault message to the RCM. CARRY OUT on-demand self test of the OCSM and RETRIEVE continuous DTCs.
B2290 Occupant Classification System Fault OCSM
NOTE:
  • If no on-demand or continuous DTC is present in the OCSM and DTC B2290 is only present in the RCM as a continuous DTC, CLEAR all RCM DTCs and PROVE OUT the system.
See PINPOINT TEST 5: DTC B2290 - OCCUPANT CLASSIFICATION SYSTEM (OCS) FAULT .
B2292 Restraint System - Seatbelt Pretensioner Fault (Driver Pre-tensioner Circuit Fault) RCM See PINPOINT TEST 6: DTC B2292 - RESTRAINT SYSTEM SAFETY BELT PRETENSIONER FAULT .
B2292 Restraint System - Seatbelt Pretensioner Fault (Passenger Pre-tensioner Circuit Fault) RCM See PINPOINT TEST 6: DTC B2292 - RESTRAINT SYSTEM SAFETY BELT PRETENSIONER FAULT .
B2293 Restraint System - Air Bag Fault (Driver Front Air Bag Circuit Fault) RCM See PINPOINT TEST 7: DTC B2293 - RESTRAINT SYSTEM - AIR BAG FAULT .
B2293 Restraint System - Air Bag Fault (Passenger Front Air Bag Circuit Fault) RCM See PINPOINT TEST 7: DTC B2293 - RESTRAINT SYSTEM - AIR BAG FAULT .
B2296 Restraint System - Impact Sensor Fault (Driver Front Impact Severity Sensor Circuit Fault) RCM See PINPOINT TEST 8: DTC B2296 - RESTRAINT SYSTEM - IMPACT SENSOR FAULT .
B2434 Drivers Seat Belt Buckle Switch Circuit Short to Ground RCM See PINPOINT TEST 9: DTC B2434 - DRIVERS SEAT BELT BUCKLE SWITCH SHORT TO GROUND .
B2435 Drivers Seat Belt Buckle Switch Resistance Out of Range RCM See PINPOINT TEST 10: DTC B2435 - DRIVERS SEAT BELT BUCKLE SWITCH RESISTANCE OUT OF RANGE .
B2438 Passenger Seat Belt Buckle Switch Short to Ground RCM See PINPOINT TEST 11: DTC B2438 - PASSENGER SEAT BELT BUCKLE SWITCH SHORT TO GROUND .
B2439 Passenger Seat Belt Buckle Switch Resistance Out of Range RCM See PINPOINT TEST 12: DTC B2439 - PASSENGER SEAT BELT BUCKLE SWITCH RESISTANCE OUT OF RANGE .
B2477 Module Configuration Failure RCM See RESTRAINTS CONTROL MODULE (RCM) .
B2477 Module Configuration Failure   See OCCUPANT CLASSIFICATION SENSOR .
B2607 Harness / Configuration Mismatch RCM INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) .
B2691 Seat Belt Buckle Switch Circuit Fault, Front Driver's Side RCM See PINPOINT TEST 13: DTC B2691 - SEAT BELT BUCKLE SWITCH CIRCUIT FAULT, FRONT DRIVER'S SIDE .
B2692 Front Passenger's Seat Belt Buckle Switch Circuit Fault RCM See PINPOINT TEST 14: DTC B2692 - FRONT PASSENGER'S SAFETY BELT BUCKLE SWITCH CIRCUIT FAULT .
B2792 Cross Link Between Firing Loops (This DTC and the Associated Firing Loops That are Crossed Will Set Applicable Loop Fault With Low Resistance on Squib) RCM See PINPOINT TEST 15: DTC B2792 - CROSS LINK BETWEEN FIRING LOOPS FAULT .
B2909 Belt Tension Sensor Fault OCSM See PINPOINT TEST 16: DTC B2909 - BELT TENSION SENSOR FAULT .
B1947 Front Driver's Seat Track Position Switch Circuit Short to Ground RCM See PINPOINT TEST 18: DTC C1947 - FRONT DRIVER'S SEAT TRACK POSITION SWITCH CIRCUIT SHORT TO GROUND .
B1948 Front Driver's Seat Track Position Switch Circuit Out of Range RCM See PINPOINT TEST 19: DTC C1948 - FRONT DRIVER'S SEAT TRACK POSITION SWITCH CIRCUIT RESISTANCE OUT OF RANGE .
B1981 Front Driver's Seat Track Position Switch Circuit Fault RCM See PINPOINT TEST 20: DTC C1981 - FRONT DRIVER'S SEAT TRACK POSITION SWITCH CIRCUIT FAULT .
C1946 Front Driver's Seat Track Position Switch Circuit Open RCM See PINPOINT TEST 17: DTC C1946 - FRONT DRIVER'S SEAT TRACK POSITION SWITCH CIRCUIT OPEN .
C1414 Incorrect Module Design Level (Incorrect Vehicle Application) RCM INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) .
C1941 Zero Seat Weight Test Failure OCSM Can only be reported when carrying out Occupant Classification Sensor (OCS) System Reset. See OCCUPANT CLASSIFICATION SENSOR .
U0151 Loss of Communication With Restraints Control Module OCSM See COMMUNICATIONS NETWORK .
U0300 Internal Control Module Software Incompatibility RCM INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) .
U1900 CAN Communication Bus Fault - Receive Error RCM See PINPOINT TEST 21: DTC U1900 - CAN COMMUNICATION BUS FAULT - RECEIVE ERROR (RCM) .
U1900 CAN Communication Bus Fault - Receive Error OCSM
NOTE:
  • If no on-demand or continuous DTC is present in the RCM and DTC U1900 is only present in the OCSM continuous, CLEAR all OCSM DTCs and PROVE OUT the system.
See PINPOINT TEST 22: DTC U1900 - CAN COMMUNICATION BUS FAULT - RECEIVE ERROR (OCS) .
U2050 No Application Present RCM INSTALL a new RCM. 08-10 RESTRAINTS CONTROL MODULE (RCM) .
U2050 No Application Present OCSM
NOTE:
  • If no on-demand or continuous DTC is present in the RCM and DTC U2050 is only present in the OCSM continuous, CLEAR all OCSM DTCs and PROVE OUT the system.
INSTALL a new OCS service kit. See OCCUPANT CLASSIFICATION SENSOR .
U2051 One or More Calibration Files Missing / Corrupt RCM INSTALL a new RCM. 08-10 RESTRAINTS CONTROL MODULE (RCM) .
U2051 One or More Calibration Files Missing / Corrupt OCSM INSTALL a new OCS service kit. See OCCUPANT CLASSIFICATION SENSOR .
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