Operation Section Table 2. Diagnostic Fault Codes (Flash Codes) cont’d. (*) Fault actions shown are default values specified by the OEM. 67 DFC PROBABLE FAULT FAULT ACTION * CORRECTIVE ACTION FIRST CHECK 272 TPS2AdaptHiMin Learned WOT end of TPS2 sensor range lower than expected None N/A 281 TPS1AdaptLoMax Learned closed throttle end of TPS1 sensor range higher than expected None N/A 282 TPS2AdaptLoMax Learned closed throttle end of TPS2 sensor range higher than expected None N/A 291 TPS Sensors Conflict _ _ TPS sensors differ by more than expected amount NOTE: The TPS is not a serviceable item and can only be repaired by replacing the DV-EV throttle assembly.
(1) TurnOnMil (2) Engine Shutdown Perform checks for DFCs 241 & 242 331 (33) MAPTimeRangeLow Manifold Absolute Pressure sensor input is low, normally set if the TMAP pressure signal wire has been disconnected or shorted to ground or the circuit has opened to the SECM None Check TMAP connector and MAP signal wiring for an open circuit TMAP Pin 4 to SECM Pin B18 (signal) TMAP Pin 1 to SECM Pin B1 (sensor GND) TMAP Pin 3 to SECM Pin B24 (XDRP +5 Vdc) Check the MAP sensor by disconnecting the TMAP connector and measuring at the sensor:
TMAP Pin 1(GND) to Pin 4 (pressure signal KPA) (2.4kΩ - 8.2kΩ) TMAP Pin 3 (power) to Pin 4 (pressure signal KPA) (3.4kΩ - 8.2kΩ) 332 MAPRangeLow Manifold Absolute Pressure sensor input is low, normally set if the TMAP pressure signal wire has been disconnected or shorted to ground or the circuit has opened to the SECM (1) TurnOnMil (2) CutThrottle Check TMAP connector and MAP signal wiring for an open circuit TMAP Pin 4 to SECM Pin B18 (signal) TMAP Pin 1 to SECM Pin B1 (sensor GND) TMAP Pin 3 to SECM Pin B24 (XDRP +5 Vdc) Check the MAP sensor by disconnect-ing the TMAP connector and measuring at the sensor:
TMAP Pin 1(GND) to Pin 4 (pressure signal KPA) (2.4kΩ - 8.2kΩ) TMAP Pin 3 (power) to Pin 4 (pressure signal KPA) (3.4kΩ - 8.2kΩ)