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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 331 (ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM (L3))DTC TABLE

2010 Mazda 5 Sport, 2.3 L, Standard

DTC Table

2010 Mazda 5 Sport, 2.3 L, StandardSECTION DTC Table

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: DTC troubleshooting flow shows diagnostic procedures, inspection methods, and proper action to take for each DTC. For additional information on using DTC Troubleshooting Flow, refer to USING THE DTC TROUBLESHOOTING FLOW .

DTC CHART [L3]

DTC No.

Condition

MIL

Monitor item

Self-test type⁽⁸⁾

Memory function

Page

P0011

CMP Timing over-advanced

CCM

C, R

⁽¹⁾

(See DTC P0011 .)

P0012

CMP Timing over-retarded

CCM

C, R

⁽¹⁾

(See DTC P0012 .)

P0030⁽³⁾

Front HO2S heater control circuit problem

HO2S heater

C,O, R

⁽¹⁾

(See DTC P0030 .)

P0031

Front HO2S heater circuit low input

HO2S heater

C,O, R

⁽¹⁾

(See DTC P0031 .)

P0032

Front HO2S heater circuit high input

HO2S heater

C,O, R

⁽¹⁾

(See DTC P0032 .)

P0037

Middle⁽³⁾/Rear⁽⁴⁾ HO2S heater circuit low input

HO2S heater

C,O, R

⁽¹⁾

(See DTC P0037 .)

P0038

Middle⁽³⁾/Rear⁽⁴⁾ HO2S heater circuit high input

HO2S heater

C,O, R

⁽¹⁾

(See DTC P0038 .)

P0043⁽³⁾

Rear HO2S heater circuit low input

HO2S heater

C, O, R

⁽¹⁾

(See DTC P0043 .)

P0044⁽³⁾

Rear HO2S heater circuit high input

HO2S heater

C, O, R

⁽¹⁾

(See DTC P0044 .)

P0101

MAF circuit range/performance problem

CCM

⁽¹⁾

(See DTC P0101 .)

P0102

MAF circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0102 .)

P0103

MAF circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0103 .)

P0106

MAP sensor performance problem

CCM

⁽¹⁾

(See DTC P0106 .)

P0107

MAP sensor circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0107 .)

P0108

MAP sensor circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0108 .)

P0111

IAT circuit performance problem

CCM

⁽¹⁾

(See DTC P0111 .)

P0112

IAT circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0112 .)

P0113

IAT circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0113 .)

P0117

ECT circuit low input

Engine cooling system

C, O, R

⁽¹⁾

(See DTC P0117 .)

P0118

ECT circuit high input

Engine cooling system

C, O, R

⁽¹⁾

(See DTC P0118 .)

P0122

TP sensor No.1 circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0122 .)

P0123

TP sensor No. 1 circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0123 .)

P0125

Excessive time to enter closed loop fuel control

Engine cooling system

⁽¹⁾

(See DTC P0125 .)

P0126

Coolant thermostat stuck open

Engine cooling system

⁽¹⁾

(See DTC P0126, P0128 .)

P0128

Coolant thermostat stuck open

Engine cooling system

⁽¹⁾

(See DTC P0126, P0128 .)

P0130⁽³⁾

Front HO2S circuit problem

HO2S

C O, R

⁽¹⁾

(See DTC P0130 .)

P0131⁽³⁾

Front HO2S circuit low input

HO2S

C, O, R

⁽¹⁾

(See DTC P0131 .)

P0132

Front HO2S circuit high input

HO2S

C, O, R

⁽¹⁾

(See DTC P0132 .)

P0133

Front HO2S circuit problem

HO2S

⁽¹⁾

(See DTC P0133 .)

P0134⁽⁴⁾

Front HO2S circuit no activity detected

HO2S

C, R

⁽¹⁾

(See DTC P0134 .)

P0138

Middle⁽³⁾/Rear⁽⁴⁾ HO2S circuit high input

HO2S

C, O, R

⁽¹⁾

(See DTC P0138 .)

P0139

Middle⁽³⁾/Rear⁽⁴⁾ HO2S circuit malfunction

HO2S

⁽¹⁾

(See DTC P0139 .)

P0140⁽⁴⁾

Rear HO2S circuit no activity detected

HO2S

C, R

⁽¹⁾

(See DTC P0140 .)

P0144⁽³⁾

Rear HO2S circuit high input

HO2S

C, O, R

⁽¹⁾

(See DTC P0144 .)

P0171⁽³⁾

Fuel trim system too lean

Fuel system

C, R

⁽¹⁾

(See DTC P0171 .)

P0172⁽³⁾

Fuel trim system too rich

Fuel system

C,R

⁽¹⁾

(See DTC P0172 .)

P0222

TP sensor No. 2 circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0222 .)

P0223

TP sensor No. 2 circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0223 .)

P0300

Random misfire detected

Flash/ON

1 or 2

Misfire

C, R

⁽¹⁾

(See DTC P0300 .)

P0301

Cylinder No. 1 misfire detected

Flash/ON

1 or 2

Misfire

C, R

⁽¹⁾

(See DTC P0301, P0302, P0303, P0304 .)

P0302

Cylinder No. 2 misfire detected

Flash/ON

1 or 2

Misfire

C, R

⁽¹⁾

(See DTC P0301, P0302, P0303, P0304 .)

P0303

Cylinder No. 3 misfire detected

Flash/ON

1 or 2

Misfire

C, R

⁽¹⁾

(See DTC P0301, P0302, P0303, P0304 .)

P0304

Cylinder No. misfire detected

Flash/ON

1 or 2

Misfire

C, R

⁽¹⁾

(See DTC P0301, P0302, P0303, P0304 .)

P0327

Knock sensor circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0327 .)

P0328

Knock sensor circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0328 .)

P0335

CKP sensor circuit malfunction

CCM

⁽¹⁾

(See DTC P0335 .)

P0340

CMP sensor circuit malfunction

CCM

⁽¹⁾

(See DTC P0340 .)

P0401

EGR flow insufficient detected

EGR

C, R

⁽¹⁾

(See DTC P0401 .)

P0403

EGR valve (stepper motor) circuit malfunction

CCM

C, O, R

⁽¹⁾

(See DTC P0403 .)

P0420⁽⁴⁾

Catalyst system efficiency below threshold

Catalyst

⁽¹⁾

(See DTC P0420 .)

P0421⁽³⁾

Catalyst system efficiency below threshold

Catalyst

⁽¹⁾

(See DTC P0421 .)

P0441

EVAP control system incorrect purge flow

EVAP system monitor

C,R

⁽¹⁾

(See DTC P0441 .)

P0442

EVAP control system leak detected (small leak)

EVAP system monitor

C, R

⁽¹⁾

(See DTC P0442 .)

P0443

EVAP control system purge control valve circuit malfunction

CCM

C, O, R

⁽¹⁾

(See DTC P0443 .)

P0446

Change over valve (COV) (EVAP system leak detection pump) stuck close

CCM

C, R

⁽¹⁾

(See DTC P0446 .)

P0455

EVAP control system leak detected (gross leak)

EVAP system monitor

C, R

⁽¹⁾

(See DTC P0455 .)

P0456⁽⁷⁾

EVAP control system leak detected (very small leak)

EVAP system monitor

C, R

⁽¹⁾

(See DTC P0456 .)

P0461

Fuel gauge sender unit circuit range/performance

CCM

⁽¹⁾

(See DTC P0461 .)

P0462

Fuel gauge sender unit circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P0462 .)

P0463

Fuel gauge sender unit circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P0463 .)

P0480

Fan relay No. 1 control circuit malfunction

OFF

CCM

C, O, R

⁽¹⁾

(See DTC P0480 .)

P0481

Fan relay No. 2 and No. 3 control circuit malfunction

OFF

CCM

C, O, R

⁽¹⁾

(See DTC P0481 .)

P0482

Fan relay No. 4 control circuit malfunction

OFF

Other

C, O, R

⁽¹⁾

(See DTC P0482 .)

P0500

Vehicle speed sensor (VSS) circuit malfunction

CCM

⁽¹⁾

(See DTC P0500 .)

P0505

Idle control system malfunction

OFF

⁽²⁾

(See DTC P0505 .)

P0506

Idle control system RPM lower than expected

CCM

⁽¹⁾

(See DTC P0506 .)

P0507

Idle control system RPM higher than expected

CCM

⁽¹⁾

(See DTC P0507 .)

P0550

PSP switch circuit malfunction

CCM

⁽¹⁾

(See DTC P0550 .)

P0564

Cruise control switch circuit malfunction

OFF

Other

⁽¹⁾

(See DTC P0564 .)

P0571

Brake switch circuit malfunction

OFF

Other

⁽¹⁾

(See DTC P0571 .)

P0601

Internal control module memory check sum error

CCM

C, O, R

⁽¹⁾

(See DTC P0601 .)

P0602

PCM programming error

CCM

C, O, R

⁽¹⁾

(See DTC P0602 .)

P0604

PCM RAM error

CCM

C, O, R

⁽¹⁾

(See DTC P0604 .)

P0606

PCM processor

CCM

C, O, R

⁽¹⁾

(See DTC P0606 .)

P0607⁽⁴⁾

Control module performance

OFF

Other

C, O, R

⁽¹⁾

(See DTC P0607 .)

P0610

Control module vehicle options error

CCM

C, O, R

⁽¹⁾

(See DTC P0610 .)

P0638

Throttle actuator control range/performance

CCM

⁽¹⁾

(See DTC P0638 .)

P0661

Variable intake-air system (VIS) control solenoid valve circuit low input

OFF

Other

C, O, R

⁽¹⁾

(See DTC P0661 .)

P0662

Variable intake-air system (VIS) control solenoid valve circuit high input

OFF

Other

C, O, R

⁽¹⁾

(See DTC P0662 .)

P0703

Brake switch No. 1 circuit malfunction

CCM

⁽¹⁾

(See DTC P0703 .)

P0704⁽⁵⁾

Clutch switch circuit malfunction

CCM

⁽¹⁾

(See DTC P0704 .)

P0850⁽⁵⁾

Neutral switch circuit malfunction

CCM

⁽¹⁾

(See DTC P0850 .)

P2004

Variable tumble control system (VTCS) shutter valve stuck open

CCM

C, R

⁽¹⁾

(See DTC P2004 .)

P2006

Variable tumble control system (VTCS) shutter valve stuck closed

CCM

C, R

⁽¹⁾

(See DTC P2006 .)

P2009

Variable tumble control solenoid valve circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P2009 .)

P2010

Variable tumble control solenoid valve circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P2010 .)

P2088

OCV actuator circuit low

CCM

C, O, R

⁽¹⁾

(See DTC P2088 .)

P2089

OCV actuator circuit high

CCM

C, O, R

⁽¹⁾

(See DTC P2089 .)

P2096

Target A/F feedback system too lean

Fuel system

⁽¹⁾

(See DTC P2096 .)

P2097

Target A/F feedback system too rich

Fuel system

⁽¹⁾

(See DTC P2097 .)

P2100⁽⁴⁾

Throttle actuator circuit open

CCM

C, O, R

⁽¹⁾

(See DTC P2100 .)

P2101

Throttle actuator circuit range/performance

CCM

C, R

⁽¹⁾

(See DTC P2101 .)

P2102⁽⁴⁾

Throttle actuator circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P2102 .)

P2103⁽⁴⁾

Throttle actuator circuit high input

Other

C, O, R

⁽¹⁾

(See DTC P2103 .)

P2107

Throttle actuator control module processor problem

CCM

C, R

⁽¹⁾

(See DTC P2107 .)

P2108

Throttle actuator control module performance problem

CCM

C, R

⁽¹⁾

(See DTC P2108 .)

P2109⁽³⁾

TP sensor minimum stop range/performance problem

CCM

C, R

⁽¹⁾

(See DTC P2109 .)

P2112⁽³⁾

Throttle actuator control system range/performance problem

CCM

C, R

⁽¹⁾

(See DTC P2112 .)

P2119

Throttle actuator control throttle body range/performance

CCM

C,R

⁽¹⁾

(See DTC P2119 .)

P2122

Accelerator pedal position (APP) sensor No. 1 circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P2122 .)

P2123

Accelerator pedal position (APP) sensor No. 1 circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P2123 .)

P2127

Accelerator pedal position (APP) sensor No. 2 circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P2127 .)

P2128

Accelerator pedal position (APP) sensor No. 2 circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P2128 .)

P2135

Throttle position sensor No. 1/No. 2 voltage correlation problem

CCM

C, O, R

⁽¹⁾

(See DTC P2135 .)

P2138

Accelerator pedal position (APP) sensor No. 1/No. 2 voltage correlation problem

CCM

C, O, R

⁽¹⁾

(See DTC P2138 .)

P2177⁽⁴⁾

Fuel system too lean at off idle

Fuel system

C,R

⁽¹⁾

(See DTC P2177 .)

P2178⁽⁴⁾

Fuel system too rich at off idle

Fuel system

C, R

⁽¹⁾

(See DTC P2178 .)

P2187⁽⁴⁾

Fuel system too lean at idle

Fuel system

C,R

⁽¹⁾

(See DTC P2187 .)

P2188⁽⁴⁾

Fuel system too rich at idle

Fuel system

C, R

⁽¹⁾

(See DTC P2188 .)

P2195

Front HO2S signal stuck lean

HO2S

⁽¹⁾

(See DTC P2195 .)

P2196

Front HO2S signal stuck rich

HO2S

⁽¹⁾

(See DTC P2196 .)

P2228

BARO sensor circuit low input

CCM

C, O, R

⁽¹⁾

(See DTC P2228 .)

P2229

BARO sensor circuit high input

CCM

C, O, R

⁽¹⁾

(See DTC P2229 .)

P2270⁽³⁾

Middle HO2S signal stuck lean

HO2S

⁽¹⁾

(See DTC P2270 .)

P2271⁽³⁾

Middle HO2S signal stuck rich

HO2S

⁽¹⁾

(See DTC P2271 .)

P2274⁽³⁾

Rear HO2S signal stuck lean

HO2S

⁽¹⁾

(See DTC P2274 .)

P2275⁽³⁾

Rear HO2S signal stuck rich

HO2S

⁽¹⁾

(See DTC P2275 .)

P2401

EVAP system leak detection pump motor circuit low

CCM

C, R

⁽¹⁾

(See DTC P2401 .)

P2402

EVAP system leak detection pump motor circuit high

CCM

C, R

⁽¹⁾

(See DTC P2402 .)

P2404

EVAP system leak detection pump sensor circuit malfunction

CCM

C, R

⁽¹⁾

(See DTC P2404 .)

P2405

EVAP system leak detection pump sensor circuit low input

CCM

C, R

⁽¹⁾

(See DTC P2405 .)

P2407

EVAP system leak detection pump sensor circuit intermittent

CCM

C, R

⁽¹⁾

(See DTC P2407 .)

P2502

Generator terminal B circuit open

OFF

⁽²⁾

C, R

⁽¹⁾

(See DTC P2502 .)

P2503

Generator output voltage signal no electricity

OFF

Other

C, R

⁽¹⁾

(See DTC P2503 .)

P2504

Battery overcharge

OFF

Other

C, R

⁽¹⁾

(See DTC P2504 .)

P2507

PCM +BB (back-up battery) voltage low

CCM

C, O, R

⁽¹⁾

(See DTC P2507 .)

P2676

Variable air duct (VAD) solenoid valve circuit low input

OFF

Other

C, O, R

⁽¹⁾

(See DTC P2676 .)

P2677

Variable air duct (VAD) solenoid valve circuit high input

OFF

Other

C, O, R

⁽¹⁾

(See DTC P2677 .)

U0073

CAN system communication error

(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] )

U0101⁽⁶⁾

Communication error to TCM

(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] )

U0121

Communication error to ABS HU/CM

(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] )

U0155

Communication error to instrument cluster

(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] )

⁽¹⁾	Applicable

⁽²⁾	Not applicable

⁽³⁾	California emission regulation applicable ATX model

⁽⁴⁾	Except for California emission regulation applicable ATX model

⁽⁵⁾

MTX model

⁽⁶⁾

ATX model

⁽⁷⁾	California emission regulation applicable model

⁽⁸⁾	C; CMDTC self test, O; KOEO selftest, R; KOER selftest

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.