Fig. 158: Shift Solenoid Valve Driving Signal Combination Table
General Description
Shift solenoid valve D is installed in the transmission housing. It is controlled by the ON/OFF signal from
the powertrain control module (PCM) to apply line pressure to lock-up shift valve. The signal from the PCM
is output to apply clutch pressure control pressure to the proper gear change clutch according to the gear
change schedule. When the signal to shift solenoid valve D from the PCM is ON, and line pressure is
applied to the lock-up shift valve, it operates against the lock-up shift valve spring. When the signal to shift
solenoid valve D from the PCM is OFF, and line pressure is discharged, the lock-up shift valve is inactive.
The PCM monitors the input shaft (mainshaft) speed and the output shaft (countershaft) speed at the gear
change determined by the shift schedule. When an improper gear ratio is output compared to the
predetermined gear change mode, a shift solenoid valve D OFF failure is detected and a DTC is stored.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
MONITOR DESCRIPTION CHART
Enable Conditions
ENABLE CONDITIONS
Execution
Continuous
Sequence
None
Duration
11 seconds (symptom 1)
3 seconds (symptom 2-A, 2-B)
DTC Type
Two drive cycles, MIL ON, D indicator blinks
OBD Status
PASSED/FAILED/NOT COMPLETED (STILL TESTING)
Condition
Minimum
Maximum
Battery
voltage
11.0 V
-
Vehicle
speed
-
6 mph (9 km/h)
(2)
2007 Acura RL
2007 ENGINE PERFORMANCE Advanced Diagnostics - RL
me
Friday, June 05, 2009 2:32:05 PM
Page 201 © 2005 Mitchell Repair Information Company, LLC.