Toyota Celica 2005 Repair Manual page 900

CIRCUIT INSPECTION
DTC P0705
CIRCUIT DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
The ECM receives signals (P, R, N, D 2 and L) from the park/neutral position switch.
DTC No.
Two or more of the following signals are detected at the same
time for 0.5 seconds or more.
(b) P range signal ON
(c) R range signal ON
(d) N range signal ON
P0705
(e) D range signal ON
(f) M range signal ON
(g) 2 range signal ON
(h) L range signal ON
MONITOR DESCRIPTION
The park/neutral position switch detects the shift lever position and sends a signal to the ECM.
For security, the park/neutral position switch detects the shift lever position so that engine can be started
only when the vehicle is in P or N shift position.
When the park/neutral position switch sends more than one signal at a time from switch positions P, R, N
or D, the ECM interprets this as a fault in the switch. The ECM will turn on the MIL and store the DTC.
MONITOR STRATEGY
Related DTCs
Required sensors/Components
Frequency of operation
Duration
MIL operation
Sequence of operation
TYPICAL ENABLING CONDITIONS
Item
The monitor will run whenever the follow-
ing DTCs are not present.
The typical enabling condition is not avail-
able.
2005 CELICA (RM1131U)
DIAGNOSTICS
Transmission Range Sensor Circuit Mal-
function (PRNDL Input)
DTC Detection Condition
P0705
Park/neutral position switch
Continuous
0.5 sec.
2 driving cycles
None
Minimum
− AUTOMATIC TRANSAXLE (U240E)
S Short in park/neutral position switch circuit
S Park/neutral position switch
S E−shift main switch circuit
S Multiplex communication circuit
S ECM
Park/neutral position switch/Verify switch input
Specification
See page DI−669
−
899
Trouble Area
Maximum
DI−701
DI4ZS−10