TM 10-3930-675-24-1
ENGINE TPS AND IDLE VALIDATION SWITCH TROUBLESHOOTING - CONTINUED
0009 00
Table 3. Error Code 1431 - Voltage Detected at Both Idle Validation
Signal Circuits Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1431 - Voltage Detected at Both Idle 9. Inspect connector X16 for a. Clean and repair connector as
Validation Signal Circuits - Continued.
damage. Reconnect connector
required (WP 0113 00).
X23 and disconnect connector b. Replace damaged ECU (794)
X16. Turn the ignition on and
(WP 0080 00).
check for voltage at connector
X16 between pin 3 and ground
and pin 13 and ground (WP
0048 00-11). There should be
4.75V to 5.25V at each pin.
4.75-5.25V
USE TEST LEAD KIT P/N 3822917
10.Inspect the OEM harness
connector and ECU pins for
damage, dirt or corrosion.
Remove engine cover (WP
0148 00). Disconnect the OEM
harness connector from ECU
(794) (WP 0080 00).
0009 00-17