Mazda Tribute 2001-06

2.3L L4 VIN D Auto 8

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Trouble Code: P1748



Electronic Pressure Control Solenoid Circuit Malfunction

Possible Causes:



EPC solenoid control circuit is shorted to ground
 
EPC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1751



Transmission Shift Solenoid 'A' Mechanical Malfunction

Possible Causes:



Problems in the internal transmission components
 
SSA is damaged or has failed
 
PCM has failed
 

Trouble Code: P1752



Transmission Shift Solenoid 'A' Circuit Malfunction

Possible Causes:



SSA solenoid control circuit is shorted to ground
 
SSA solenoid is damaged or has failed
 
TCM has failed
 

Trouble Code: P1756



Transmission Shift Solenoid 'B' Mechanical Malfunction

Possible Causes:



Problems in the internal transmission components
 
SSB is damaged or has failed
 
PCM has failed
 

Trouble Code: P1757



Transmission Shift Solenoid 'B' Circuit Malfunction

Possible Causes:



SSA solenoid control circuit is shorted to ground
 
SSA solenoid is damaged or has failed
 
TCM has failed
 

Trouble Code: P1760



Electronic pressure control (EPC) solenoid

Possible Causes:



EPC solenoid control circuit is shorted to ground
 
EPC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1775



Electronic pressure control (EPC) solenoid

Possible Causes:



EPC solenoid control circuit is shorted to ground
 
EPC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1776



Electronic pressure control (EPC) solenoid

Possible Causes:



EPC solenoid control circuit is shorted to ground
 
EPC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1777



Electronic pressure control (EPC) solenoid

Possible Causes:



EPC solenoid control circuit is shorted to ground
 
EPC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1780



Transmission Control Switch Circuit Malfunction (Self-Test

Possible Causes:



TCS switch not cycled at the proper time in the KOER Self-Test
 
TCS switch signal circuit is open or shorted to ground
 
TCS switch signal circuit is shorted to VREF or system power
 
TCS switch is damaged, out-of-adjustment or has failed
 
PCM has failed
 

Trouble Code: P1783



Transmission Fluid Temperature Sensor Circuit High Input

Possible Causes:



ATF level is low, or the fluid is contaminated or burnt
 
Vehicle driven with excessive loads, or trailer towing conditions
 
TCC clutch is damaged or has failed (it may be slipping)
 
TFT sensor signal circuit is open (an intermittent fault)
 
Transaxle cooling system is damaged or has failed
 
PCM has failed
 

Trouble Code: P1788



A/T 3-2T/CCS Circuit Malfunction

Possible Causes:



3-2/TCCS control circuit is shorted to ground
 
3-2/TCCS power circuit is open
 
3-2/TCCS is damaged or has failed
 
PCM has failed (the solenoid driver circuit may be open)
 

Trouble Code: P1789



A/T 3-2T/CCS Circuit Malfunction

Possible Causes:



3-2/TCCS control circuit is open
 
3-2/TCCS power circuit is shorted to system power (B+)
 
3-2/TCCS is damaged or has failed
 
PCM has failed (the solenoid driver circuit may be open)
 

Trouble Code: P1793



Mass Air Flow (MAF/IAT) sensor

Possible Causes:



MAF / IAT signal circuit is open
 
MAF / IAT signal circuit is shorted to ground
 
MAF / IAT signal circuit is shorted to system power
 
PCM or the TCM has failed (internal transistor failure)
 

Trouble Code: P1900



Output Speed Sensor Circuit Malfunction

Possible Causes:



OSS signal circuit is open (an intermittent fault)
 
OSS signal circuit is shorted to ground (an intermittent fault)
 
OSS signal circuit is shorted to system power (intermittent fault)
 
OSS is damaged or has failed (an intermittent fault)
 
PCM has failed
 

Trouble Code: P1901



Turbine Speed Sensor Circuit Malfunction

Possible Causes:



TSS signal circuit is open (an intermittent fault)
 
TSS signal circuit is shorted to ground (an intermittent fault)
 
TSS signal circuit is shorted to system power (intermittent fault)
 
TSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P2004



Variable Tumble Control System (VTCS) shutter valve stuck open

Possible Causes:



VTCS shutter valve malfunction (stuck open)
 
Misconnecting or pull out the vacuum hose
 
Variable tumble control valve malfunction
 
PCM has failed
 

Trouble Code: P2006



Variable Tumble Control System (VTCS) shutter valve stuck closed

Possible Causes:



VTCS shutter valve malfunction (stuck closed)
 
Misconnecting or pull out the vacuum hose
 
Variable tumble control valve malfunction
 
PCM has failed
 

Trouble Code: P2008



Variable Tumble Control System (VTCS) shutter valve stuck closed

Possible Causes:



VTCS shutter valve malfunction (stuck closed)
 
Misconnecting or pull out the vacuum hose
 
Variable tumble control valve malfunction
 
PCM has failed
 

Trouble Code: P2014



SSV malfunction

Possible Causes:



SSV stuck open
 
SSV control malfunction
 
SSV actuator malfunction
 
PCM has failed
 

Trouble Code: P2070



SSV malfunction

Possible Causes:



SSV stuck open
 
SSV control malfunction
 
SSV actuator malfunction
 
PCM has failed
 

Trouble Code: P2071



SSV malfunction

Possible Causes:



SSV stuck open
 
SSV control malfunction
 
SSV actuator malfunction
 
PCM has failed
 

Trouble Code: P2195



HO2S (RF) signal stuck lean

Possible Causes:



HO2S (RF, LF) malfunction
 
Exhaust gas leaking* MAF sensor malfunction
 
ECT sensor malfunction
 
PCM has failed
 

Trouble Code: P2196



HO2S (RF) signal stuck rich

Possible Causes:



HO2S (RF, LF) malfunction
 
Exhaust gas leaking* MAF sensor malfunction
 
ECT sensor malfunction
 
PCM has failed
 

Trouble Code: P2197



HO2S (LF) signal stuck lean

Possible Causes:



HO2S (RF, LF) malfunction
 
Exhaust gas leaking* MAF sensor malfunction
 
ECT sensor malfunction
 
PCM has failed
 

Trouble Code: P2198



HO2S (LF) signal stuck rich

Possible Causes:



HO2S (RF, LF) malfunction
 
Exhaust gas leaking* MAF sensor malfunction
 
ECT sensor malfunction
 
PCM has failed
 

Trouble Code: P2270



Rear HO2S signal stuck lean

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

Trouble Code: P2271



Rear HO2S signal stuck rich

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

Trouble Code: P2272



Rear HO2S signal stuck lean

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

Trouble Code: P2273



Rear HO2S signal stuck rich

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

Trouble Code: U0101



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U0121



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U0155



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U0167



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U0302



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U1020



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
A/C System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U1039



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
Vehicle Speed System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U1040



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
Vehicle Speed System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U1051



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
ABS System controller is damaged or has failed
 
PCM has failed
 

Trouble Code: U1131



Data Circuit Malfunction

Possible Causes:



SCP data bus to other controller(s) is open or shorted to ground
 
Fuel System controller is damaged or has failed
 
PCM has failed
 

 
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