Toyota Celica 2005 Repair Manual page 990

CIRCUIT INSPECTION
DTC P0705
CIRCUIT DESCRIPTION
The neutral start 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.
(2−trip detection logic)
P0705 S 2 or more switches are ON simultaneously for P, R, N, D, 2
and L positions.
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 this DTC is
not present.
The typical enabling condition is not avail-
able.
2005 CELICA (RM1131U)
DIAGNOSTICS
Transmission Range Sensor Circuit Mal-
function (PRNDL Input)
DTC Detecting Condition
P0705
Park/neutral position switch
Continuous
0.5 sec.
2 driving cycles
None
Minimum
− AUTOMATIC TRANSAXLE (U341E)
S Open or short in park/neutral position switch circuit
S Park/neutral position switch
S ECM
Park/neutral position switch/Verify switch input
Specification
See page DI−758
−
989
Trouble Area
Maximum
DI−789
DIAJ8−03