Mitsubishi Eclipse 1990 Service Manual page 1698

Code No. 16 Power supply system
[Comment]
This diagnostic trouble code is output when the ABS-ECU power voltage is outside
the standard value. Furthermore, if the voltage returns to normal, this diagnostic
trouble code will not be output.
Caution
If the battery voltage drops during check, this code will be output as a current
diagnostic of the problem cannot be made.
Before carrying out the following check, check the battery condition;
Measure at the ABS-ECU connector
OK
. N
Check the following connector:
OK
Check trouble symptoms
Code No.
or short circuit
[Comment]
These diagnostic trouble codes are output when the detection speed of the wheel
speed sensors is below the standard value.
NOTE
1. Momentary interruptions within approximately 100 ms are not detected.
2. To inspect the twisted pair wires in the wheel speed sensor, check if there is
cables, and flex the cables to check for any open circuits.
(Refer to
check (Refer to
Wheelspeedsensorbody-side harness
ABS
549,
Check the
G
Replace ABS-ECU.
Wheel speed sensor
NG
Repair
NG
Wheel speed sensor check
(Refer to
TSB Revision
Troubleshooting
Malfunction of wiring harness or connector,
Malfunction of battery or generator'
Malfunction of ABS-ECU
NG
and
or
gap
Improper installation of wheel speed sensor
Malfunction of wheel speed sensor (intermittent open
circuit or short circuit)
Malfunction of ABS rotor (chipped tooth or rotor not
installed)
Noise interference in wheel speed sensor
Malfunction
and correct
Repair
. .
of ABS-ECU ,
Replace the wheel speed sensor.