Diagnosis system (BCM)
C1708 - C1711 data from transmitter not being receivedU1243 display unit
DTC Logic
Diagnosis Procedure
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit
2.CHECK CONTINUITY OF COMMUNICATION CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M142 and AV control unit
connector M163.
...
Service data and specifications (SDS)
Idle Speed
Ignition Timing
Calculated Load Value
Mass Air Flow Sensor
*: Engine is warmed up to normal operating temperature and running under no
load. ...
B2553 ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...