Mazda Tribute 2001-06

2.0L L4 - Std 7

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Trouble Code: P1568



TCM +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)
 
TCM has failed
 

Trouble Code: P1572



Variable Timing Control System Circuit High Input

Possible Causes:



VTCS control circuit is shorted to system power (B+)
 
VTCS solenoid valve is damaged or has failed
 
PCM is damaged
 

Trouble Code: P1600



PCM Malfunction

Possible Causes:



PCM link to the TCM is open
 
PCM link to the TCM is shorted to ground
 
PCM link to the TCM is shored to power
 
PCM or the TCM has failed
 

Trouble Code: P1601



PCM Communication Line to TCM Error

Possible Causes:



PCM link to the TCM is open
 
PCM link to the TCM is shorted to ground
 
PCM link to the TCM is shored to power
 
PCM or the TCM has failed
 

Trouble Code: P1602



PCM Communication Line to TCM Error

Possible Causes:



Key (the transponder) is damaged or has failed
 
PCM communication line to Immobilizer is open, shorted to ground or shorted to system power
 
Transponder "coil" is damaged or has failed
 
PCM or the Immobilizer unit has failed
 

Trouble Code: P1603



Code Word Not Registered In The PCM

Possible Causes:



Check for any related Technical Service Bulletins
 
Perform the Immobilizer "code word" reprogramming procedure
 

Trouble Code: P1604



Key Identification Numbers Not Registered In The PCM

Possible Causes:



Check for any related Technical Service Bulletins
 
Perform the Immobilizer "Key ID" reprogramming procedure
 

Trouble Code: P1608



PCM Output Device Circuit Malfunction

Possible Causes:



Output device (relay or solenoid) control circuit(s) shorted to ground between the device and the PCM
 
If none of the output device control circuits are shorted to ground (key on, voltage drop check), the PCM has failed
 

Trouble Code: P1609



Knock Sensor Integrated Circuit Malfunction

Possible Causes:



Perform a PCM "Reset" function
 
Then turn the key to on, engine off. If this trouble code resets, the PCM circuitry for the Knock sensor is damaged, and the PCM must be replaced to correct the condition.
 

Trouble Code: P1621



Key Identification Number Not Registered In The PCM

Possible Causes:



Immobilizer problem during transformation of the "code word"
 
PCM problem during transformation of the "code word"
 
Immobilizer Unit has failed
 
PCM has failed
 

Trouble Code: P1622



Key Identification Number Does Not Match In The PCM

Possible Causes:



An "unregistered" key was used during Step 3 of the Immobilizer Unit replacement procedure
 
A problem occurred during transformation of the Key ID number stored in the PCM
 

Trouble Code: P1623



Code Word or Key ID Number Read/Write Error in the PCM

Possible Causes:



Perform a PCM "reset" procedure - if the same trouble code resets, the PCM has failed
 
Reprogram the Immobilizer Unit after the PCM is replaced
 

Trouble Code: P1624



Immobilizer Communication Error

Possible Causes:



Perform a PCM "reset" procedure
 
Attempt to start the engine three (3) times
 
If the code resets, check for other codes related to a No Start
 
Perform engine diagnostics to determine the cause of No Start
 

Trouble Code: P1630



Generator Output Signal (No Output)

Possible Causes:



Generator Terminal 'P' circuit is open or shorted to ground
 
Generator Terminal 'D' circuit is open or shorted to ground
 
Generator drive belt is cut or missing
 
Generator has failed (i.e., generator brushes or rectifier bridge)
 
PCM has failed
 

Trouble Code: P1631



Generator Output Signal (No Output)

Possible Causes:



Generator Terminal 'P' circuit is open or shorted to ground
 
Generator Terminal 'D' circuit is open or shorted to ground
 
Generator drive belt is cut or missing
 
Generator has failed (i.e., generator brushes or rectifier bridge)
 
PCM has failed
 

Trouble Code: P1633



PCM Long Term Memory Interruption

Possible Causes:



KAM circuit is open between battery and the PCM connector
 
KAM circuit is shorted to ground (check for a blown fuse)
 
KAM circuit has high resistance at the battery connections
 
PCM has failed
 

Trouble Code: P1634



Generator Battery Terminal Open Circuit Malfunction

Possible Causes:



Generator Battery Terminal circuit is open
 
Generator is damaged or has failed (i.e., no Generator output)
 
Battery has failed (it is unable to accept a charge)
 
PCM has failed
 

Trouble Code: P1635



Generator Battery Terminal Open Circuit Malfunction

Possible Causes:



Generator Battery Terminal circuit is open
 
Generator is damaged or has failed (i.e., no Generator output)
 
Battery has failed (it is unable to accept a charge)
 
PCM has failed
 

Trouble Code: P1639



Generator Battery Terminal Open Circuit Malfunction

Possible Causes:



Generator Battery Terminal circuit is open
 
Generator is damaged or has failed (i.e., no Generator output)
 
Battery has failed (it is unable to accept a charge)
 
PCM has failed
 

Trouble Code: P1645



Generator Battery Terminal Open Circuit Malfunction

Possible Causes:



Generator Battery Terminal circuit is open
 
Generator is damaged or has failed (i.e., no Generator output)
 
Battery has failed (it is unable to accept a charge)
 
PCM has failed
 

Trouble Code: P1650



Power Steering Pressure Switch Circuit Malfunction (Self-Test)

Possible Causes:



PSP signal circuit is open or shorted to ground
 
PSPS ground circuit is open (at the switch mounting point)
 
PSPS is damaged or has failed
 
PCM has failed
 

Trouble Code: P1652



Power Steering Pressure Switch Circuit Malfunction

Possible Causes:



PSP signal circuit is open or shorted to ground
 
PSPS ground circuit is open (at the switch mounting point)
 
PSPS is damaged or has failed
 
PCM has failed
 

Trouble Code: P1700



Transaxle failure

Possible Causes:



Transaxle malfunction
 
PCM has failed
 

Trouble Code: P1709



Clutch Pedal Position Switch Circuit Malfunction (Self-Test)

Possible Causes:



CPP switch circuit is open between the switch and the PCM
 
CPP switch circuit is shorted between the switch and the PCM
 
TR switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1772



TP Sensor Signal To TCM Circuit Malfunction (Shorted)

Possible Causes:



TP sensor signal circuit is shorted to ground between the sensor and the TCM connector
 
TP sensor is damaged or has failed
 
TCM 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: P1794



Battery Direct To PCM Circuit Malfunction

Possible Causes:



KAM circuit is open (the problem may be intermittent)
 
KAM circuit is shorted to ground (KAM fuse is blown)
 
KAM circuit connection loose in wiring harness or at the PCM
 
PCM has failed
 

Trouble Code: P1797



Clutch or Neutral Switch Circuit Malfunction

Possible Causes:



Clutch or Neutral switch signal is open or shorted to ground
 
Clutch or Neutral switch signal is shorted to system power (B+)
 
Clutch or Neutral switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1798



Engine Coolant Temperature (ECT) sensor Malfunction

Possible Causes:



Overheating condition
 
Basic engine concerns
 
ECT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1799



Throttle Position (TP) sensor Malfunction

Possible Causes:



TP sensor has an open circuit or connection
 
Damaged MAF/IAT sensor
 
TP sensor is damaged or has failed
 
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: P2070



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
 

 
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