Mazda Tribute 2001-06

3.0L V6 - Auto 7

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Trouble Code: P1457



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
 

Trouble Code: P1460



Wide Open Throttle A/C Cut-Off Relay Circuit Malfunction

Possible Causes:



A/C relay is damaged or has failed
 
A/C relay power circuit is open between relay and ENGINE fuse
 
A/C relay control circuit is open between the relay and the PCM
 
A/C relay control circuit is shorted to ground
 
A/C relay control circuit is shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P1461



Wide Open Throttle A/C Cut-Off Relay Circuit Malfunction

Possible Causes:



A/C relay is damaged or has failed
 
A/C relay power circuit is open between relay and ENGINE fuse
 
A/C relay control circuit is open between the relay and the PCM
 
A/C relay control circuit is shorted to ground
 
A/C relay control circuit is shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P1462



Wide Open Throttle A/C Cut-Off Relay Circuit Malfunction

Possible Causes:



A/C relay is damaged or has failed
 
A/C relay power circuit is open between relay and ENGINE fuse
 
A/C relay control circuit is open between the relay and the PCM
 
A/C relay control circuit is shorted to ground
 
A/C relay control circuit is shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P1463



Wide Open Throttle A/C Cut-Off Relay Circuit Malfunction

Possible Causes:



A/C relay is damaged or has failed
 
A/C relay power circuit is open between relay and ENGINE fuse
 
A/C relay control circuit is open between the relay and the PCM
 
A/C relay control circuit is shorted to ground
 
A/C relay control circuit is shorted to system power (B+)
 
PCM has failed
 

Trouble Code: P1464



A/C Control Signal Circuit Malfunction (Self-Test)

Possible Causes:



A/C relay control circuit is shorted to system power (B+)
 
A/C relay is damaged or has failed
 
A/C WOT relay is damaged or has failed
 
A/C clutch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1465



A/C Control Signal Circuit Malfunction (Self-Test)

Possible Causes:



A/C relay control circuit is shorted to system power (B+)
 
A/C relay is damaged or has failed
 
A/C WOT relay is damaged or has failed
 
A/C clutch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1469



A/C Clutch

Possible Causes:



A/C system has too much Freon
 
A/C relay is damaged or has failed
 
A/C system doesn-t have enough Freon
 
A/C clutch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1473



PCM - Cooling fan

Possible Causes:



LFC circuit is shorted
 
LFC circuit is damaged or has failed
 
PCM has failed
 

Trouble Code: P1474



Low Fan Relay Control Circuit Malfunction

Possible Causes:



LFC relay circuit is open or shorted to ground
 
LFC relay circuit is shorted to system power (B+)
 
LFC relay is shorted or damaged
 
PCM has failed
 

Trouble Code: P1475



Low Fan Relay Control Circuit Malfunction

Possible Causes:



LFC relay circuit is open or shorted to ground
 
LFC relay circuit is shorted to system power (B+)
 
LFC relay is shorted or damaged
 
PCM has failed
 

Trouble Code: P1476



Low Fan Relay Control Circuit Malfunction

Possible Causes:



LFC relay circuit is open or shorted to ground
 
LFC relay circuit is shorted to system power (B+)
 
LFC relay is shorted or damaged
 
PCM has failed
 

Trouble Code: P1477



Medium Fan Relay Control Circuit Malfunction

Possible Causes:



MFC relay circuit is open or shorted to ground
 
MFC relay circuit is shorted to system power (B+)
 
MFC relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1479



High Fan Control Relay Circuit Malfunction

Possible Causes:



HFC relay circuit is open or shorted to ground
 
HFC relay circuit is shorted to system power (B+)
 
HFC relay is shorted or damaged
 
PCM has failed
 

Trouble Code: P1480



Condenser Fan Relay Control Circuit Malfunction

Possible Causes:



Condenser fan relay control circuit is open or shorted to ground
 
Condenser fan relay control circuit is shorted to system power
 
Condenser fan relay power circuit is open or shorted to ground
 
Condenser fan relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1481



Condenser Fan Relay Control Circuit Malfunction

Possible Causes:



Condenser fan relay control circuit is open or shorted to ground
 
Condenser fan relay control circuit is shorted to system power
 
Condenser fan relay power circuit is open or shorted to ground
 
Condenser fan relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P1485



EGR Vacuum Solenoid Circuit Malfunction

Possible Causes:



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

Trouble Code: P1486



EGR Vent Solenoid Circuit Malfunction

Possible Causes:



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

Trouble Code: P1487



EGR Boost Sensor Solenoid Circuit Malfunction

Possible Causes:



EGR boost sensor solenoid circuit is open or shorted to ground
 
EGR boost sensor solenoid circuit is shorted to system power
 
EGR boost sensor solenoid power circuit is open
 
EGR boost sensor solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1496



EGR Valve Stepper Motor Coil 1 Circuit Malfunction

Possible Causes:



EGR Coil 1 control circuit is open or shorted to ground
 
EGR Coil 1 control circuit is shorted to power
 
EGR Coil 1 power circuit open between valve and main relay
 
EGR Coil 1 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1497



EGR Valve Stepper Motor Coil 2 Circuit Malfunction

Possible Causes:



EGR Coil 2 control circuit is open or shorted to ground
 
EGR Coil 2 control circuit is shorted to power
 
EGR Coil 2 power circuit open between valve and main relay
 
EGR Coil 2 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1498



EGR Valve Stepper Motor Coil 3 Circuit Malfunction

Possible Causes:



EGR Coil 3 control circuit is open or shorted to ground
 
EGR Coil 3 control circuit is shorted to power
 
EGR Coil 3 power circuit open between valve and main relay
 
EGR Coil 3 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1499



EGR Valve Stepper Motor Coil 4 Circuit Malfunction

Possible Causes:



EGR Coil 4 control circuit is open or shorted to ground
 
EGR Coil 4 control circuit is shorted to power
 
EGR Coil 4 power circuit open between valve and main relay
 
EGR Coil 4 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1500



Vehicle Speed Sensor Intermittent Signal

Possible Causes:



VSS signal circuit is open (an intermittent fault)
 
VSS signal circuit is shorted to ground (an intermittent fault)
 
VSS signal circuit is shorted to VREF (an intermittent fault)
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P1501



Vehicle Speed Sensor Circuit Malfunction (Self-Test)

Possible Causes:



Charging system problem (check alternator for AC leakage)
 
Ignition system component has failed (i.e., check for signs of primary or secondary voltage leaking from the coil, coil wire, spark plug wires or boots, or the spark plug insulators
 
PCM has failed
 

Trouble Code: P1504



Idle Air Control Solenoid Circuit Malfunction

Possible Causes:



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

Trouble Code: P1506



Idle Air Control System RPM Higher Than Expected

Possible Causes:



EGR valve is stuck open or leaking, or the gasket is leaking
 
EVAP purge valve is leaking or stuck in open position
 
IAC solenoid control circuit is shorted to ground (intermittent)
 
IAC valve is stuck open (it may be dirty or have failed)
 
PCV valve is leaking, or a leak in the intake manifold exists
 
PCM has failed
 

Trouble Code: P1507



Idle Air Control System RPM Lower Than Expected

Possible Causes:



Air filter element is severely restricted, or air inlet is plugged
 
Base engine problems: cylinder compression or valve timing
 
IAC valve is stuck in one position (it may be dirty or has failed)
 
IAC solenoid or valve is damaged or has failed
 
Throttle body is dirty, damaged or contaminated
 
PCM has failed
 

Trouble Code: P1508



Bypass Air Solenoid 1 Circuit Malfunction

Possible Causes:



Bypass air solenoid control circuit is open or shorted to ground
 
Bypass air solenoid control circuit is shorted to system power
 
Bypass air solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1509



Bypass Air Solenoid 2 Circuit Malfunction

Possible Causes:



Bypass air solenoid control circuit is open or shorted to ground
 
Bypass air solenoid control circuit is shorted to system power
 
Bypass air solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1510



Bypass Air Solenoid 2 Circuit Malfunction

Possible Causes:



Bypass air solenoid control circuit is open or shorted to ground
 
Bypass air solenoid control circuit is shorted to system power
 
Bypass air solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1511



Bypass Air Solenoid 2 Circuit Malfunction

Possible Causes:



Bypass air solenoid control circuit is open or shorted to ground
 
Bypass air solenoid control circuit is shorted to system power
 
Bypass air solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1520



Intake Manifold Runner Control Circuit Malfunction

Possible Causes:



IMRC control circuit is open
 
IMRC control circuit is shorted to ground
 
IMRC power circuit open or shorted to ground (check the fuse)
 
PCM has failed
 

Trouble Code: P1525



ABV Vacuum Solenoid Circuit Malfunction

Possible Causes:



ABV vacuum solenoid control circuit open or shorted to ground
 
ABV vacuum solenoid control circuit is shorted to system power
 
ABV vacuum solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1526



ABV Vent Solenoid Circuit Malfunction

Possible Causes:



ABV vent solenoid control circuit open or shorted to ground
 
ABV vent solenoid control circuit is shorted to system power
 
ABV vent solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1527



Bypass Air Solenoid Circuit Malfunction

Possible Causes:



Bypass air solenoid control circuit is open or shorted to ground
 
Bypass air solenoid power circuit is open
 
Bypass air solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1540



Air Bypass Valve System

Possible Causes:



Engine control sensor is out-of-range (i.e., ECT, IAT or MAF)
 
ABV vacuum or vent solenoid is damaged or has failed
 
Air intake leak in the engine or related vacuum hose or pipes
 
Air intake restriction in a component related to the ABV system
 
PCM has failed
 

Trouble Code: P1550



Air Bypass Valve System

Possible Causes:



Engine control sensor is out-of-range (i.e., ECT, IAT or MAF)
 
ABV vacuum or vent solenoid is damaged or has failed
 
Air intake leak in the engine or related vacuum hose or pipes
 
Air intake restriction in a component related to the ABV system
 
PCM has failed
 

Trouble Code: P1562



PCM +BB Voltage Low

Possible Causes:



+BB circuit is open
 
+BB circuit is shorted to ground (check for a blown fuse)
 
+BB circuit has high resistance (check the battery connections)
 
PCM has failed
 

Trouble Code: P1565



PCM +BB Voltage Low

Possible Causes:



+BB circuit is open
 
+BB circuit is shorted to ground (check for a blown fuse)
 
+BB circuit has high resistance (check the battery connections)
 
PCM has failed
 

 
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