|
|
AV-154 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] U1240 SWITCH CONN U1240 SWITCH CONN Description INFOID:0000000007347714 U1240 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta- neously, without fail, with the malfunction of control units connected to AV control unit with communication line. Determine the possible malfunction cause from the table below. Self-diagnosis results display item DTC Display contents of CONSULT DTC Detection Condition Possible causes U1240 • SWITCH CONN [U1240] • A/C and AV switch assembly power supply and ground circuit malfunction is detected • A malfunction is detected in communication circuit be- tween AV control unit and A/C and AV switch assembly • A malfunction is detected in communication signal be- tween AV control unit and A/C and AV switch assembly • A/C and AV switch assembly power supply and ground circuits • Communication circuit between AV control unit and A/C and AV switch August 2012 2012 Pathfinder |