P2440 The secondary air valve (cylinder bank 1) is jammed open. (P2440) Possible cause: Y32 (Air pump switchover valve) Affected functions: Engine diagnosis Test 1: Check component Y32 (Air pump switchover valve). 1. Check component Y32 (Air pump switchover valve). Test 1.1: Test actuation of component Y32 (Air pump switchover valve). Test 1.2: Test current consumption of component Y32 (Air pump switchover valve). 1.1. Test actuation of component Y32 (Air pump switchover valve). Test sequence Operate engine at idling speed. Actuate component Y32 (Air pump switchover valve).(Actuate with key F2.) Warning!Communication with ECU required. 10.52SS Page 2182010 Mercedes Benz E 63 AMG Sedan (212.077) V86.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS 1.2. Test current consumption of component Y32 (Air pump switchover valve). Figure legend A ConnectionTest cable 35pin socket box 001 Sockets of compone...
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