P31xx OBD-II Codes (P3100–P3199)
100 fault codes in the P31xx range. Click any code for causes, diagnostic steps, severity, and common fixes.
P3100 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3101 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3102 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3103 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3104 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3105 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3106 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3107 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3108 moderate
Lost Communication With A/C Amplifier ECU — CAN (Toyota hybrid)
P3109 moderate
High-Voltage Battery ECU / Communication Circuit Fault (Toyota hybrid)
P3110 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3111 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3112 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3113 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3114 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3115 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3116 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3117 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3118 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3119 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3120 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3121 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3122 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3123 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3124 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3125 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3126 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3127 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3128 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3129 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3130 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3131 moderate
Manufacturer-specific powertrain/hybrid code — definition not reliably documented; verify against your make's service information
P3132 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3133 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3134 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3135 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3136 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3137 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3138 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3139 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3140 moderate
Manufacturer-specific powertrain/hybrid code — definition not reliably documented; verify against your make's service information
P3141 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3142 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3143 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3144 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3145 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3146 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3147 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3148 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3149 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3150 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3151 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3152 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3153 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3154 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3155 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3156 moderate
Cylinder 3 High-Pressure Injector — Activation High-Side, Short to Positive (BMW/MINI direct injection)
P3157 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3158 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3159 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3160 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3161 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3162 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3163 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3164 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3165 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3166 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3167 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3168 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3169 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3170 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3171 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3172 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3173 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3174 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3175 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3176 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3177 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3178 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3179 moderate
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3180 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3181 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3182 critical
Manufacturer-specific hybrid / high-voltage code — definition not reliably documented; verify against your make's service information
P3183 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3184 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3185 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3186 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3187 critical
High Voltage Cable Integrity Fault Detected
P3188 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3189 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3190 critical
Poor / Insufficient Engine Power — hybrid (Toyota/Lexus; common on Prius & Camry Hybrid)
P3191 critical
Engine Does Not Start — HV ECU estimated-vs-target torque; engine fails to start (Toyota/Lexus hybrid)
P3192 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3193 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3194 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3195 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3196 critical
Manufacturer-specific powertrain code — definition not reliably documented; verify against your make's service information (varies: VW MAF signal; GM Duramax)
P3197 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3198 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information
P3199 critical
Manufacturer-specific powertrain code — definition not reliably documented; its meaning varies by make, model, and year, so confirm it against your manufacturer's service information