Mazda Tribute 2001-06

3.0L V6 - Auto 6

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Trouble Code: P1133



HO2S-11 (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean

Possible Causes:



Air leaks located after the MAF sensor
 
Base Engine: Check for vacuum leaks with a Smoke Tester
 
Intake air system is leaking, obstructed and damaged
 
Low fuel pressure or vehicle driven until it was out of fuel
 
PCV system has air leaks at the valve or related hoses
 

Trouble Code: P1134



HO2S-11 (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean

Possible Causes:



Air leaks located after the MAF sensor
 
Base Engine: Check for vacuum leaks with a Smoke Tester
 
Intake air system is leaking, obstructed and damaged
 
Low fuel pressure or vehicle driven until it was out of fuel
 
PCV system has air leaks at the valve or related hoses
 

Trouble Code: P1135



HO2S-11 (Bank 1 Sensor 1) Heater Circuit Low Input

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater power circuit open between sensor and ignition
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1136



HO2S-11 (Bank 1 Sensor 1) Heater Circuit High Input

Possible Causes:



HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1137



HO2S-12 Lack of Switching, Indicates Lean (Self-Test)

Possible Causes:



Air leaks located after the MAF sensor
 
Base Engine: Check for vacuum leaks with a Smoke Tester
 
HO2S wiring may be crossed at the connector
 
Check intake air system for leaks, obstructions and damage
 
EGR system malfunction (the EGR valve may be stuck open)
 
PCV system has air leaks at the valve or related hoses
 
Fuel pressure is too low (fuel filter is dirty, or weak fuel pump)
 
Vehicle driven until it was out of fuel
 

Trouble Code: P1138



HO2S-12 Lack of Switching, Indicates Rich (Self-Test)

Possible Causes:



Check air cleaner element, air cleaner housing for blockage
 
Fuel pressure regulator is leaking, or fuel pressure is too high
 
HO2S wiring may be crossed at the connector
 
Fuel injectors leaking or contaminated (they may be sticking)
 
EVAP vapor recovery system has failed (canister full of fuel)
 

Trouble Code: P1169



HO2S-12 (Bank 1 Sensor 2) Circuit No Inversion

Possible Causes:



An air leak that is located after the MAF sensor
 
Base engine mechanical fault affecting one or more cylinders
 
EVAP Purge valve stuck or the hoses to the valve are reversed
 
Fuel metering fault (fuel injector sticking open or leaking)
 
Fuel pressure too low or too high, fuel supply contaminated
 
HO2S element is contaminated or the HO2S heater has failed
 
PCV system has air leaks at the valve or related hoses
 

Trouble Code: P1173



HO2S-21 (Bank 2 Sensor 1) Circuit Malfunction

Possible Causes:



Base engine mechanical fault affecting one or more cylinders
 
EVAP Purge valve stuck or the hoses to the valve are reversed
 
Fuel metering fault (fuel injector sticking open or leaking)
 
Fuel pressure too low or too high, fuel supply contaminated
 
HO2S element is contaminated or the HO2S heater has failed
 
PCV system has air leaks at the valve or related hoses
 

Trouble Code: P1244



Generator / Regulator System

Possible Causes:



GLI circuit is open or shorted to ground
 
GLI circuit is shorted to system power (B+)
 
Generator or voltage regulator is damaged or has failed
 
PCM has failed
 

Trouble Code: P1245



Generator / Regulator System

Possible Causes:



GLI circuit is open or shorted to ground
 
GLI circuit is shorted to system power (B+)
 
Generator or voltage regulator is damaged or has failed
 
PCM has failed
 

Trouble Code: P1246



Fuel Pump Control Circuit Range/Performance

Possible Causes:



GLI circuit is open or shorted to ground
 
GLI circuit is shorted to system power (B+)
 
Generator or voltage regulator is damaged or has failed
 
PCM has failed
 

Trouble Code: P1251



Pressure Regulator Control Solenoid Circuit Malfunction

Possible Causes:



PRC solenoid circuit is open or shorted to ground
 
Fuel pump relay power circuit is open
 
PCM has failed
 

Trouble Code: P1260



Anti-Theft System Signal Detected, Engine Disabled

Possible Causes:



Previous theft condition has occurred
 
Anti-Theft System is damaged or has failed
 

Trouble Code: P1270



Engine RPM or Vehicle Speed Limit Reached

Possible Causes:



Excessive wheel slippage (due to water, ice, mud or snow)
 
Engine over-revved with the gear selector in Neutral position
 
Vehicle was driven at a very high rate of speed
 

Trouble Code: P1285



Cylinder Head Temperature Sensor - Engine Overheated

Possible Causes:



Engine coolant level is low, or wrong coolant mixture
 
Engine overheat condition exists
 
CHT sensor is out-of-calibration or damaged
 
PCM has failed
 

Trouble Code: P1288



Cylinder Head Temperature Sensor Circuit Malfunction (Self-Test)

Possible Causes:



Engine not warm enough to begin the KOER Self-Test
 
CHT sensor is out-of-calibration or damaged
 
PCM has failed
 

Trouble Code: P1289



Cylinder Head Temperature Sensor Overheat Condition

Possible Causes:



Serious engine overheat condition exists
 
CHT sensor is out-of-calibration or damaged
 
PCM has failed
 

Trouble Code: P1290



Cylinder Head Temperature Sensor Low Input

Possible Causes:



CHT sensor signal circuit is shorted to ground
 
CHT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1299



Cylinder Head Temperature Sensor High Input

Possible Causes:



CHT sensor signal circuit is open
 
CHT sensor signal circuit is shorted to VRED
 
CHT sensor ground circuit is open
 
CHT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1309



Misfire Detection Monitor

Possible Causes:



CMP sensor is not properly synchronized in the engine
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1336



Camshaft Position (SGC) Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open or shorted to ground
 
CMP sensor signal circuit is shorted to VREF or system power
 
CMP sensor power circuit open between sensor and main relay
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1345



Camshaft Position (SGC) Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open or shorted to ground
 
CMP sensor signal circuit is shorted to VREF or system power
 
CMP sensor power circuit open between sensor and main relay
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1364



Ignition Coil Primary Circuit Malfunction

Possible Causes:



Ignition coil primary circuit is open
 
Ignition coil primary circuit is shorted to ground
 
Ignition coil primary is damaged or has failed
 
PCM has failed
 

Trouble Code: P1382



Camshaft position (CMP) sensor

Possible Causes:



CMP sensor circuit is open
 
CMP sensor circuit is shorted to ground
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1387



Camshaft positions (CMP) sensor

Possible Causes:



CMP sensor circuit is open
 
CMP sensor circuit is shorted to ground
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1400



EGR Valve Position Sensor Circuit Low Input (Self-Test)

Possible Causes:



EGRP sensor signal circuit is shorted to ground
 
EGRP sensor power circuit is open
 
EGRP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1401



EGR Valve Position Sensor Circuit High Input (Self-Test)

Possible Causes:



EGRP sensor signal circuit is open
 
EGRP sensor ground circuit is open
 
EGRP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1402



EGR Valve Position Sensor Circuit Malfunction

Possible Causes:



EGRP sensor signal circuit is open or shorted to ground
 
EGRP sensor signal circuit shorted to VREF or system power
 
EGRP sensor ground circuit or power circuit is open
 
EGRP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1405



DPFE Sensor Upstream Hose Off or Plugged

Possible Causes:



DPF EGR sensor upstream hose is disconnected
 
DPF EGR sensor upstream hose is plugged (ice)
 
EGR orifice tube is plugged or damaged
 

Trouble Code: P1406



DPFE Sensor Downstream Hose Off or Plugged

Possible Causes:



DPF EGR sensor downstream hose is disconnected
 
DPF EGR sensor downstream hose is plugged (ice)
 
EGR orifice tube is plugged or damaged
 

Trouble Code: P1407



No EGR Flow Detected

Possible Causes:



EGRA solenoid is damaged or has failed
 
EGRC solenoid is damaged or has failed
 
EGRV solenoid is damaged or has failed
 
EGRBP sensor is damaged or has failed
 
EGR valve assembly is leaking, damaged or has failed
 
EGRA, EGRC, EGRV or EGRBP harness/connector damaged
 
Exhaust system is partially blocked or restricted
 
PCM has failed
 

Trouble Code: P1408



EGR System Flow Out Of Range (Self-Test)

Possible Causes:



EGR valve stuck closed or iced up, or the flow path is restricted
 
EGR valve diaphragm leaking, hose is off, plugged or leaking
 
EGR system vacuum lines are loose or damaged
 
EGRA solenoid is damaged or has failed
 
EGRV solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1409



EGR Vacuum Regulator Solenoid Circuit Malfunction

Possible Causes:



EGR VR solenoid control circuit is open
 
EGR VR solenoid control circuit is shorted to ground
 
EGR VR solenoid control circuit is shorted to system power
 
EGR VR solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1412



EGR Boost Sensor Solenoid Valve Stuck

Possible Causes:



Air leaks located after the MAF sensor assembly
 
EGR/BARO sensor is damaged or has failed
 
EGRC solenoid valve is damaged or has failed
 
EGR sensor vacuum hose to EGR Boost solenoid is loose
 
EGR sensor vacuum hose to the intake manifold is loose
 
EGRC or EGR/BARO sensor harness/connector damaged
 
PCM has failed
 

Trouble Code: P1443



EVAP System Purge Flow Malfunction

Possible Causes:



Fuel vapor hose blocked between EVAP purge valve and FTP sensor, or blocked between purge valve and intake manifold, or vacuum hose blocked between purge valve and intake manifold
 
EVAP canister purge solenoid stuck closed (mechanically)
 

Trouble Code: P1446



EVAP Purge Flow Sensor Circuit Low Input

Possible Causes:



Purge flow sensor signal circuit is open
 
Purge flow sensor ground circuit is open
 
Purge flow sensor signal circuit is shorted to VREF or power
 
Purge flow sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1449



CDCV or TPCV Circuit Malfunction

Possible Causes:



CDCV control circuit is open or shorted to ground
 
CDCV control circuit is shorted to power
 
CDCV power circuit is open between the valve and main relay
 
CDCV is damaged or has failed
 
TPCV solenoid control circuit is open or shorted to ground
 
TPCV (valve) is damaged, leaking or has failed
 
PCM has failed
 

Trouble Code: P1450



EVAP Control System Excessive Vacuum Detected

Possible Causes:



Air filter element is extremely dirty or clogged
 
Canister drain cut valve (CDCV) is damaged or has failed
 
Charcoal canister is full of fuel or moisture, or is damaged
 
EVAP system drain passage is clogged
 
Fuel tank pressure sensor is damaged or out-of-calibration
 
Purge solenoid valve is damaged or has failed
 

Trouble Code: P1451



Canister Vent Solenoid Circuit Malfunction

Possible Causes:



CV solenoid control circuit is open or shorted to ground
 
CV solenoid control circuit is shorted to system power (B+)
 
CV solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1456



Fuel Tank Level Sensor Circuit Malfunction

Possible Causes:



Fuel tank level sensor signal circuit open or shorted to ground
 
Fuel tank level sensor is damaged or has failed
 
PCM has failed
 

 
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