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A/T Interlock System
Shift Lock System Circuit Troubleshooting (cont'd)
11. Turn the ignition switch OFF.
12. Disconnect the throttle position sensor (TPS)
connector.
13. Turn the ignition switch ON (II).
14. Measure the voltage between TPS connector
terminals No. 1 and No. 3.
THROTTLE POSITION
SENSOR CONNECTOR
SG2 (GRN/BLK)
Wire side of female terminals
Is there about 5V ?
YES
Check for a short or an open in the wire
between PCM connector terminal A27 and the TPS.
If the wire is OK, replace the TPS.
NO
Go to step 15.
15. Turn the ignition switch OFF.
16. Disconnect PCM connector C (31P).
14-410
VCC2 (YEL/BLU)
17. Check for continuity between TPS connector
terminal No. 1 and body ground, and between
terminal No. 3 and body ground.
THROTTLE POSITION
SENSOR CONNECTOR
SG2 (GRN/BLK)
Wire side of female terminals
Are there continuity?
YES
Check for a short to ground in the wires
between TPS connector terminals No. 1 and No. 3,
and the PCM. If the wires are OK, replace the
PCM.
NO
Go to step 18.
18. Disconnect the shift lock solenoid connector.
19. Check for continuity between shift lock solenoid
connector terminal No. 2 and multiplex control unit
(driver's) connector terminal B22.
MULTIPLEX CONTROL UNIT
(DRIVER'S) 22P CONNECTOR B
SHIFT LOCK SOLENOID (GRN)
SHIFT LOCK SOLENOID
CONNECTOR
Wire side of female terminals
Is there continuity?
YES
Go to step 20.
NO
Repair open in the wire between multiplex
control unit (driver's) connector terminal B22 and
the shift lock solenoid.
VCC2 (YEL/BLU)
GRN
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Troubleshooting
