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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
U: DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT
DTC DETECTING CONDITION:
Shift lock solenoid malfunction, open or short reverse inhibitor control circuit
TROUBLE SYMPTOM:
• Gear is shifted from "N" range to "R" range during driving at 20 km/h (12 MPH) or more.
• Gear cannot be shifted from "N" range to "R" range.
WIRING DIAGRAM:
Step
1
CHECK HARNESS CONNECTOR BETWEEN
TCM AND SHIFT LOCK SOLENOID.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM and
shift lock solenoid.
3) Measure the resistance of harness
between TCM and shift lock solenoid connec-
tor.
Connector & terminal
(B55) No. 18 — (B116) No. 3:
B55
TCM
BODY INTEGRATED MODULE
B116
3
4
E
4AT(diag)-81
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
SHIFT LOCK
SOLENOID
Check
Is the resistance less than 1
Ω?
B55
1 2
3 4
5 6
7 8 9
10 11 12
13 14 15 16 17
18
19 20 21
22 23 24 25 26
27 28
29 30 31
B116
1
2
3
4
5
6 7 8 9
10
Yes
Go to step 2.
Repair the open
circuit of harness
between TCM and
shift lock solenoid
connector.
AT-01893
No
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