Pin16

U21xx

Network communication

Lost communication with a named module - the reporting module can no longer reach one it expects to hear from.

No open-source descriptions exist for this system, so its codes are read from their structure.

Manufacturer-specific. Check a source specific to your make and model year.

U2100 U2101 U2102 U2103 U2104 U2105 U2106 U2107 U2108 U2109 U210A U210B U210C U210D U210E U210F U2110 U2111 U2112 U2113 U2114 U2115 U2116 U2117 U2118 U2119 U211A U211B U211C U211D U211E U211F U2120 U2121 U2122 U2123 U2124 U2125 U2126 U2127 U2128 U2129 U212A U212B U212C U212D U212E U212F U2130 U2131 U2132 U2133 U2134 U2135 U2136 U2137 U2138 U2139 U213A U213B U213C U213D U213E U213F U2140 U2141 U2142 U2143 U2144 U2145 U2146 U2147 U2148 U2149 U214A U214B U214C U214D U214E U214F U2150 U2151 U2152 U2153 U2154 U2155 U2156 U2157 U2158 U2159 U215A U215B U215C U215D U215E U215F U2160 U2161 U2162 U2163 U2164 U2165 U2166 U2167 U2168 U2169 U216A U216B U216C U216D U216E U216F U2170 U2171 U2172 U2173 U2174 U2175 U2176 U2177 U2178 U2179 U217A U217B U217C U217D U217E U217F U2180 U2181 U2182 U2183 U2184 U2185 U2186 U2187 U2188 U2189 U218A U218B U218C U218D U218E U218F U2190 U2191 U2192 U2193 U2194 U2195 U2196 U2197 U2198 U2199 U219A U219B U219C U219D U219E U219F U21A0 U21A1 U21A2 U21A3 U21A4 U21A5 U21A6 U21A7 U21A8 U21A9 U21AA U21AB U21AC U21AD U21AE U21AF U21B0 U21B1 U21B2 U21B3 U21B4 U21B5 U21B6 U21B7 U21B8 U21B9 U21BA U21BB U21BC U21BD U21BE U21BF U21C0 U21C1 U21C2 U21C3 U21C4 U21C5 U21C6 U21C7 U21C8 U21C9 U21CA U21CB U21CC U21CD U21CE U21CF U21D0 U21D1 U21D2 U21D3 U21D4 U21D5 U21D6 U21D7 U21D8 U21D9 U21DA U21DB U21DC U21DD U21DE U21DF U21E0 U21E1 U21E2 U21E3 U21E4 U21E5 U21E6 U21E7 U21E8 U21E9 U21EA U21EB U21EC U21ED U21EE U21EF U21F0 U21F1 U21F2 U21F3 U21F4 U21F5 U21F6 U21F7 U21F8 U21F9 U21FA U21FB U21FC U21FD U21FE U21FF

Read this code from your own car

Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.

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