Mazda P1391 Glow plug circuit low input DETECTION CONDITION • The PCM monitors the glow plug relay signal. If the voltage at PCM terminal 210 remains low, the PCM determines that there is a glow plug relay circuit malfunction. POSSIBLE CAUSE • Glow plug relay malfunction • Melt or burnt glow fuse • PCM malfunction • Connector or terminal malfunction…
Mazda Factory OBD-II DTC P1392 Code Diagnostic Procedure
Mazda P1392 Glow plug circuit high input DETECTION CONDITION • The PCM monitors the glow plug relay signal. If the voltage at PCM terminal 132 remains high, the PCM determines that there is a glow plug relay circuit malfunction. POSSIBLE CAUSE • Glow plug relay malfunction • Glow plug malfunction • PCM malfunction • Connector or terminal malfunction • Short to…
Mazda Factory OBD-II DTC P1395 Code Diagnostic Procedure
Mazda P1395 Glow plug monitor error DETECTION CONDITION • The PCM monitors the glow plug relay signal. If the voltage at PCM terminal 132 remains high, the PCM determines that there is a glow plug relay circuit malfunction. POSSIBLE CAUSE • Glow plug relay malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA…
Mazda Factory OBD-II DTC P1209 Code Diagnostic Procedure
Mazda P1209 Fuel pressure peak delta test error DETECTION CONDITION • The PCM monitors the fuel pressure sensor signal. If signal at PCM deviates from the threshold, the PCM determines that the there is a fuel pump malfunction. POSSIBLE CAUSE • Fuel pump malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS…
Mazda Factory OBD-II DTC P1210 Code Diagnostic Procedure
Mazda P1210 Fuel pressure higher than desired when engine off DETECTION CONDITION • The PCM monitors the fuel pressure sensor signal. If signal at PCM deviates from the threshold, the PCM determines that the there is a fuel pump malfunction. POSSIBLE CAUSE • Fuel pump malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME…
Mazda Factory OBD-II DTC P1211 Code Diagnostic Procedure
Mazda P1211 Fuel pressure higher or lower than desired DETECTION CONDITION • The PCM monitors the fuel pressure sensor signal. If signal at PCM deviates from the threshold, the PCM determines that the there is a fuel pump malfunction. POSSIBLE CAUSE • Fuel pump malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA…
Mazda Factory OBD-II DTC P1212 Code Diagnostic Procedure
Mazda P1212 Fuel pressure lower than desired DETECTION CONDITION • The PCM monitors the fuel pressure sensor signal. If signal at PCM deviates from the threshold, the PCM determines that the there is a fuel pump malfunction. POSSIBLE CAUSE • Fuel pump malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN…
Mazda Factory OBD-II DTC P1244 Code Diagnostic Procedure
Mazda P1244 Generator load high input DETECTION CONDITION • The PCM monitors the generator signal. If the voltage at PCM terminal 213 remains high, the PCM determines that there is a generator circuit problem. POSSIBLE CAUSE • Generator malfunction • Short to power circuit between generator connector terminal C and PCM terminal 213 • Connector or terminal malfunction • PCM…
Mazda Factory OBD-II DTC P1245 Code Diagnostic Procedure
Mazda P1245 Generator load low input DETECTION CONDITION • The PCM monitors the generator signal. If the voltage at PCM terminal 213 remains low, the PCM determines that there is a generator circuit problem. POSSIBLE CAUSE • Generator malfunction • Short to ground circuit between generator connector terminal C and PCM terminal 213 • Connector or terminal malfunction • PCM…
Mazda Factory OBD-II DTC P1259 Code Diagnostic Procedure
Mazda P1259 Instrument cluster to PCM signal error DETECTION CONDITION • The PCM does not complete target ID transfer. POSSIBLE CAUSE • Immobilizer system malfunction • Communication error between instrument cluster and PCM • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded? Yes Go to…
Mazda Factory OBD-II DTC P1260 Code Diagnostic Procedure
Mazda P1260 Immobilizer system problem DETECTION CONDITION • The instrument cluster detects an immobilizer system problem. POSSIBLE CAUSE • Immobilizer system malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded? Yes Go to the next step. No Record the FREEZE FRAME DATA on…
Mazda Factory OBD-II DTC P1180 Code Diagnostic Procedure
Mazda P1180 Fuel delivery system-low DETECTION CONDITION • Fuel run dry strategy triggered • Faults for checks in PCV controlled mode – Minimum rail pressure exceeded POSSIBLE CAUSE • Fuel empty • Fuel supply pump malfunction • Fuel pressure sensor characteristic malfunction • Fuel metering control valve or related circuit malfunction • Fuel limiter malfunction • Fuel leakage from fuel system • Fuel leakage…
Mazda Factory OBD-II DTC P1181 Code Diagnostic Procedure
Mazda P1181 Fuel delivery system-high DETECTION CONDITION • Faults for checks in PCV controlled mode – Maximum rail pressure exceeded POSSIBLE CAUSE • Fuel metering control valve malfunction. • Fuel pressure sensor characteristic malfunction • Fuel pressure limiter malfunction • Fuel injector clogged • Fuel return line clogged • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS…
Mazda Factory OBD-II DTC P1187 Code Diagnostic Procedure
Mazda P1187 Variant selection DETECTION CONDITION • Incorrect calibration or calibration not selected by configuration POSSIBLE CAUSE • Incorrect calibration or calibration not selected by configuration. • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related service bulletins and/or on-line repair information availability. • Is any repair information available? Yes Perform repair or…
Mazda Factory OBD-II DTC P1201 Code Diagnostic Procedure
Mazda P1201 Fuel injector No.1 circuit malfunction DETECTION CONDITION • The PCM monitors the fuel injector No.1. If the voltage at PCM terminals 118 and 101 remains high, the PCM determines that there is a fuel injector No.1 circuit problem. POSSIBLE CAUSE • Fuel injector No.1 malfunction • Connector or terminal malfunction • Short to power supply in the…
Mazda Factory OBD-II DTC P1202 Code Diagnostic Procedure
Mazda P1202 Fuel injector No.2 circuit malfunction DETECTION CONDITION • The PCM monitors the fuel injector No.2. If the voltage at PCM terminals 126 and 110 remains high, the PCM determines that there is a fuel injector No.2 circuit problem. POSSIBLE CAUSE • Fuel injector No.2 malfunction • Connector or terminal malfunction • Short to power supply in the…
Mazda Factory OBD-II DTC P1203 Code Diagnostic Procedure
Mazda P1203 Fuel injector No.3 circuit malfunction DETECTION CONDITION • The PCM monitors the fuel injector No.3. If the voltage at PCM terminals 125 and 109 remains high, the PCM determines that there is a fuel injector No.3 circuit problem. POSSIBLE CAUSE • Fuel injector No.3 malfunction • Connector or terminal malfunction • Short to power supply in the…
Mazda Factory OBD-II DTC P1204 Code Diagnostic Procedure
Mazda P1204 Fuel injector No.4 circuit malfunction DETECTION CONDITION • The PCM monitors the fuel injector No.4. If the voltage at PCM terminals 117 and 102 remains high, the PCM determines that there is a fuel injector No.4 circuit problem. POSSIBLE CAUSE • Fuel injector No.4 malfunction • Connector or terminal malfunction • Short to power supply in the…
Mazda Factory OBD-II DTC P1101,P2279 Code Diagnostic Procedure
Mazda P1101 Mazda P2279 Mass air flow (MAF) sensor out of self test range Intake-air system leak DETECTION CONDITION • The PCM cannot receive correct air mass signal from the MAF sensor while KOEO/KOER self test. POSSIBLE CAUSE • MAF sensor malfunction • PCM malfunction Diagnostic procedure STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED…
Mazda Factory OBD-II DTC P1102 Code Diagnostic Procedure
Mazda P1102 Mass air flow (MAF) sensor in range but lower than expected DETECTION CONDITION • The PCM compares actual input from MAF sensor with expected MAF amount that PCM calculates by engine running condition. If the actual MAF signal is excessive lower than expected value, the PCM determines that the MAF sensor signal is lower…