Operation Section
67
Table 2. Diagnostic Fault Codes (Flash Codes) cont’d.
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) (2.4k
Ω
- 8.2k
Ω
)
TMAP Pin 3 (power) to
Pin 4 (pressure signal KPA) (3.4k
Ω
- 8.2k
Ω
)
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) (2.4k
Ω
- 8.2k
Ω
)
TMAP Pin 3 (power) to
Pin 4 (pressure signal KPA) (3.4k
Ω
- 8.2k
Ω
)
(*) Fault actions shown are default values specified by the OEM.
