FI system wiring diagram

Terminal alignment of ecm coupler

Self-diagnosis function
Component locationThrottle body inspection and cleaning
Refer to “throttle body disassembly and assembly” .
Cleaning
Some
carburetor cleaning chemicals,
especially dip-type soaking solutions, are
very corrosive and must be handled carefully.
Always follow the chemical manufacturer’s
instructions on proper use, handling and
sto ...
Self-diagnostic procedures
Use of mode select switch
Note
do not disconnect the coupler from ecm,
battery cable from battery, ecm ground
wire from engine or main fuse before
confirming dtc (diagnostic trouble code)
stored in memory. Such disconnection
may erase memorized information in ec ...
DTC “c49” (p1656): pair control solenoid
valve circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
Pair control solenoid valve voltage is not input to ecm
Pair control solenoid valve circuit open or short.
Pair control solenoid valve malfunction.
Ecm malfunction.
...