DTC P0722

PULSE GENERATOR B

DTC Strategy

? Check for pulses of input/ouput speed sensors.

? Signal circuit is open or short

? Sensor power circuit is open

? Sensor ground circuit is open

? Faulty pulse generator

? Faulty TCM

Enable Conditions

? Range Sensor is D,2, L range.

? 25sec passed after N-D shifting

? Output Revolution calculated by Input Revolution = 5 Km/h

? To inhibit failure detection Input Sensor/Range Sensor/S1, S2 Electorical

Threshold Value

( 1st,2nd,3rd )

? TCU detects NO pulse of output speed sensor while TCU detects 45 pulses of input speed signal(500 times continuously).

? Output speed calculation data decrease over 1500 rpm compare with previous calculation, and 0rpm.

Diagnostic Time

?

Fail Safe

( 1st,2nd,3rd )

? TCU uses Input Sensor signal as a vehicle speed

? No L-up

? No 4th gear

? No LinePressure Reduction at Shifting

? No Torque Reduction at Shifting

? No Reverse Control

? No squat Control

? No Up Slope Mode/Down Slope Mode

? To inhibit failure detection(Sol Malfunction/L4 SW Malfunction)

( 4th )

? L-up off and the following operation is applied.1. E/G revolution >first idle + 300 rpm

- 4th gear fixed2. E/G revolution = first idle + 300 rpm

- OD off after 1 sec.

- To be operated according to failure operation in 1,2,3rd gear after 5 sec. from OD off

Pass Criteria

? To detect output speed more than 400rpm for 70 seconds continuously.