Toyota Celica 2005, Repair Manual

Page: 990 / 2497

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