Toyota Corolla (E120): Circuit description
The park/neutral position switch detects the shift lever position and sends signals to the ecm.
Monitor description
The park/neutral position switch detects the gearshift position and sends a signal to the ecm.
For security, the park/neutral position switch detects the gearshift 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, 2, or l the ecm interprets this as a fault in the switch. The ecm will turn on the mil.
Monitor strategy
P0705
P0850
Typical enabling condition
P0705
P0805
Typical malfunction thresholds
P0705
P0850
Component operating range
Wiring diagram
Other materials:
Shift lock system (atm)
On–vehicle inspection
1. Check shift lock operation
shift the shift lever to p position.
turn the ignition switch to lock.
check that the shift lever cannot be shifted to any other
positions other than p.
turn the ignition switch to on, depress the brake pedal ...
Terminals of ecu
Oscilloscope wave (*1)
Hint:
terminal: od – gnd
gauge set: 5 v / div, 50 ms / div
condition: during cruise control driving o/d switch on.
...
Circuit description
The vapor pressure sensor and the vsv for the canister closed valve (ccv) are
used to detect abnormalities
in the evaporative emission control system. The ecm decides whether there is an
abnormality in the evaporative
emission control system based on the vapor pressure sensor signal.
Dtc p0 ...