Mazda Car 2002-04

2.3L L4 - Std 3

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Trouble Code: P0704



Clutch Pedal Switch Circuit Malfunction

Possible Causes:



Clutch switch signal circuit is open or shorted ground
 
Clutch switch power circuit (B+) open between switch and PCM
 
Clutch switch is damaged, misadjusted or installed improperly
 
PCM has failed
 

Trouble Code: P1410



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: 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: 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: P2009



Variable Tumble Control Solenoid Valve circuit input low

Possible Causes:



Poor connection of connectors for PCM and/or VTCS
 
Open circuit or short between VTCS terminals and PCM terminals
 
Variable tumble control valve malfunction
 
PCM has failed
 

Trouble Code: P2010



Variable Tumble Control Solenoid Valve circuit input high

Possible Causes:



Poor connection of connectors for PCM and/or VTCS
 
Open circuit or short between VTCS terminals and PCM terminals
 
Variable tumble control valve malfunction
 
PCM has failed
 

Trouble Code: P2088



CMP actuator circuit low

Possible Causes:



Poor connection of connectors for PCM and/or OCV
 
Open circuit or short between OCV terminals and PCM terminals
 
OCV malfunction
 
PCM has failed
 

Trouble Code: P2089



CMP actuator circuit high

Possible Causes:



Poor connection of connectors for PCM and/or OCV
 
Open circuit or short between OCV terminals and PCM terminals
 
OCV malfunction
 
PCM has failed
 

Trouble Code: P2096



Target A/F feedback system too lean (right bank)

Possible Causes:



Leaking exhaust gas
 
HO2S (RR, LR) malfunction
 
MAF malfunction
 
PCM has failed
 

Trouble Code: P2097



Target A/F feedback system too rich (right bank)

Possible Causes:



Leaking exhaust gas
 
HO2S (RR, LR) malfunction
 
MAF malfunction
 
PCM has failed
 

Trouble Code: P2100



Throttle Actuator circuit open

Possible Causes:



Poor connection of connectors for PCM and/or OCV
 
Open circuit or short between OCV terminals and PCM terminals
 
OCV malfunction
 
PCM has failed
 

Trouble Code: P2101



Throttle Actuator circuit range/performance

Possible Causes:



ET control relay and related circuit malfunction
 
Main relay and related circuit malfunction
 
PCM has failed
 

Trouble Code: P2102



Throttle Actuator circuit low input

Possible Causes:



Open circuits between throttle body terminals and PCM terminals
 
Short circuit between throttle body terminals and PCM terminals* Poor connection of throttle body or PCM connector
 
Throttle Valve motor malfunction
 
PCM has failed
 

Trouble Code: P2103



Throttle Actuator circuit high input

Possible Causes:



Open circuits between throttle body terminals and PCM terminals
 
Short circuits between throttle body terminals and PCM terminals* Poor connection of throttle body or PCM connector
 
Throttle Valve motor malfunction
 
PCM has failed
 

Trouble Code: P2107



Throttle Actuator control module processor

Possible Causes:



PCM has failed
 

Trouble Code: P2108



Throttle Actuator control module performance

Possible Causes:



Open circuits between throttle body terminals and PCM terminals
 
Short circuits between throttle body terminals and PCM terminals* Poor connection of throttle body or PCM connector
 
TP sensor No. 1 or TP sensor No. 2 malfunction
 
PCM has failed
 

Trouble Code: P2112



TP sensor minimum stop range/performance problem

Possible Causes:



Drive-by-wire control system malfunction
 
Throttle actuator malfunction* Throttle valve malfunction
 
PCM has failed
 

Trouble Code: P2119



TP sensor minimum stop range/performance problem

Possible Causes:



Drive-by-wire control system malfunction
 
Throttle actuator malfunction* Throttle valve malfunction
 
PCM has failed
 

Trouble Code: P2122



APP sensor No. 1 circuit low input

Possible Causes:



Open circuits between APP sensor terminals and PCM terminals
 
Short circuits between APP sensor terminals and PCM terminals* Poor connection of APP sensor or PCM connector
 
APP sensor No. 1 malfunction
 
PCM has failed
 

Trouble Code: P2123



APP sensor No. 1 circuit high input

Possible Causes:



Open circuits between APP sensor terminals and PCM terminals
 
Short circuits between APP sensor terminals and PCM terminals* Poor connection of APP sensor or PCM connector
 
APP sensor No. 1 malfunction
 
PCM has failed
 

Trouble Code: P2127



APP sensor No. 2 circuit low input

Possible Causes:



Open circuits between APP sensor terminals and PCM terminals
 
Short circuits between APP sensor terminals and PCM terminals* Poor connection of APP sensor or PCM connector
 
APP sensor No. 1 malfunction
 
PCM has failed
 

Trouble Code: P2128



APP sensor No. 2 circuit high input

Possible Causes:



Open circuits between APP sensor terminals and PCM terminals
 
Short circuits between APP sensor terminals and PCM terminals* Poor connection of APP sensor or PCM connector
 
APP sensor No. 1 malfunction
 
PCM has failed
 

Trouble Code: P2135



TP sensor No. 1/No. 2 voltage correlation problem

Possible Causes:



TP sensor No. 1 malfunction
 
TP sensor No. 2 malfunction* Poor connection of throttle body or PCM connector
 
PCM has failed
 

Trouble Code: P2138



TP sensor No. 3/No. 4 voltage correlation problem

Possible Causes:



TP sensor No. 3 malfunction
 
TP sensor No. 4 malfunction* Poor connection of throttle body or PCM connector
 
PCM has failed
 

Trouble Code: P2177



Fuel system too lean at off idle (right bank)

Possible Causes:



Misfire
 
Exhaust system leak* Fuel pump malfunction
 
Fuel filter clogged
 
PCM has failed
 

Trouble Code: P2178



Fuel system too rich at off idle (right bank)

Possible Causes:



Misfire
 
Exhaust system leak* Fuel pump malfunction
 
Fuel filter clogged
 
PCM has failed
 

Trouble Code: P2187



Fuel system too lean at off idle (right bank)

Possible Causes:



Misfire
 
Exhaust system leak* Fuel pump malfunction
 
Fuel filter clogged
 
PCM has failed
 

Trouble Code: P2188



Fuel system too lean at off idle (left bank)

Possible Causes:



Misfire
 
Exhaust system leak* Fuel pump malfunction
 
Fuel filter clogged
 
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: P2228



EGR boost sensor solenoid valve circuit low input

Possible Causes:



EGR boost sensor solenoid malfunction
 
Connector or terminal malfunction* PCM has failed
 

Trouble Code: P2229



EGR boost sensor solenoid valve circuit high input

Possible Causes:



EGR boost sensor solenoid malfunction
 
Connector or terminal 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: P2274



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: P2275



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: P2401



EVAP system leak detection pump motor circuit low

Possible Causes:



EVAP system leak detection pump malfunction
 
Poor connection of EVAP system or PCM connector
 
PCM has failed
 

Trouble Code: P2402



EVAP system leak detection pump motor circuit low

Possible Causes:



EVAP system leak detection pump malfunction
 
Poor connection of EVAP system or PCM connector
 
PCM has failed
 

Trouble Code: P2404



EVAP system leak detection pump sense circuit problem

Possible Causes:



Air filter clogging
 
EVAP hose bending
 
PCM has failed
 

 
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