TM 10-3930-675-20-1
0008 00-19
ENGINE TPS AND IDLE VALIDATION SWITCH TROUBLESHOOTING - CONTINUED
0008 00
Table 3. Error Code 1431 - Idle Validation Switch Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1431 - Idle Validation Switch Circuit
Failure - Continued
8. Disconnect harness connector
from engine ECU. Place
ignition
switch
in
ON
position.
a. Measure
voltage
from
engine ECU OEM port
connector pin 3 to engine
block
ground.
Voltage
should be 4.75-5.25V.
If voltage is not as specified,
replace engine ECU (WP 0078
00).
b. Measure
voltage
from
engine ECU OEM port
connector pin 13 to engine
block
ground.
Voltage
should be 4.75-5.25V.
If voltage is not as specified,
replace engine ECU (WP 0078
00).
9. Place ignition switch in OFF
position, disconnect OEM
harness
connector
from
engine ECU, and connect
harness to sensor switch.
a. Measure resistance from
OEM harness connector pin
3
to
OEM
harness
connector pin 19 with
accelerator pedal released.
Resistance should be less
than 125 ohms.
If harness requires replacement,
notify SRA.
USE TEST LEAD
KIT P/N 3822917
4.75-5.25V
