AT5608
Accumulator Control Pressure
High
Electric Current (A) 0
1
D00060
(*) Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle.
For example, if A is the period of continuity in one cycle, and B is the period of non-continuity, then
D00062
Reference
Waveform between terminals SLN
+
and SLN- when engine is idling.
5 V / Div.
GND Waveform between terminals SLN
+
and SLN- during shift change.
5 V / Div.
GND
1 msec. / Div.1 msec. / Div.
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-195
351 Author: Date:
2001 AVALON (RM808U)
DTC P1765Linear Solenoid for Accumulator Pressure Control
Circuit Malfunction (Shift Solenoid Valve SLN)
CIRCUIT DESCRIPTION
The shift solenoid valve SLN controls the hydraulic pressure
acting on the accumulator control valve when gears are shifted
and performs smooth gear shifting.
The ECM determines optimum operating pressure according to
the signals from the throttle position sensor, vehicle speed sen-
sor and direct clutch speed sensor and controls the volume of
current flow to the solenoid valve.
The amount of current to the solenoid is controlled by the (*)
duty ratio of ECM output signals, causing a momentary change
to the hydraulic pressure acting on the clutches during gear
shifting.
When the duty ratio is high, the hydraulic pressure acting on the
clutches is low.
DTC No.DTC Detecting ConditionTrouble Area
P1765
After the engine is warmed up, the current flows to the shift
solenoid valve SLN for 1 sec or more under condition (a) or
(b):
(a) Engine speed: 500 rpm or more
(b) Park/neutral position switch: ON (P or N position)
Open or short in shift solenoid valve SLN circuit
Shift solenoid valve SLN
ECM
DI02Q-07
DI02F-06
DI-172
- DIAGNOSTICSAUTOMATIC TRANSAXLE
328 Author: Date:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
*: ...MIL lights up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500
(DI-178)Vehicle Speed Sensor Malfunc-
tion
(Vehicle Speed Sensor)
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
Combination meter
ECM
Automatic transaxle (clutch, brake or gear etc.)
P0750
(DI-181)Shift Solenoid A Malfunction
(Shift Solenoid Valve No.1)Shift solenoid valve No.1 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
P0753
(DI-183)Shift Solenoid A Electrical Mal-
function
(Shift Solenoid Valve No.1)Open or short in shift solenoid valve No.1 circuit
Shift solenoid valve No.1
ECM
P0755
(DI-181)Shift Solenoid B Malfunction
(Shift Solenoid Valve No.2)Shift solenoid valve No.2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)
P0758
(DI-183)Shift Solenoid B Electrical Mal-
function
(Shift Solenoid Valve No.2)Open or short in shift solenoid valve No.2 circuit
Shift solenoid valve No.2
ECM
P0770
(DI-187)Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
Shift solenoid valve SL is stuck open or closed
Valve body is blocked up or stuck
Lock-up clutch
Automatic transaxle (clutch, brake or gear etc.)
P0773
(DI-189)Shift Solenoid E Electrical Mal-
function
(Shift Solenoid Valve SL)Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM
P1520
(DI-192)Stop Light Switch Signal Mal-
functionOpen or short in stop light switch circuit
Stop light switch
ECM
P1705
(DI-193)NC2 Revolution Sensor Circuit
Malfunction
(Direct Clutch Speed Sensor)Open or short in direct clutch speed sensor circuit
Direct clutch speed sensor
ECM
P1765
(DI-195)
Linear Solenoid for Accumulator
Pressure Control Circuit Mal-
function
(Shift Solenoid Valve SLN)Open or short in shift solenoid valve SLN circuit
Shift solenoid valve SLN
ECM
P1780
(DI-199)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM
