2001 TOYOTA AVALON parking brake
[x] Cancel search: parking brakePage 725 of 1897
R01346
Normal Code
0.25 sec.
0.25 sec. 2 sec.
ON
OFF
ON
OFF0.5 sec. 0.5 sec.
Code 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
F02201
DLC1 E
1Tc
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-253
409 Author: Date:
2001 AVALON (RM808U)
As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(4) Codes are explained in the code table on page
DI-258.
(5) After completing the check, disconnect terminals Tc
and E
1, and turn off the display.
If 2 or more malfunction codes are identified at the same time,
the lowest numbered DTC will be displayed 1st.
(c) In case of not using TOYOTA hand-held tester:
Check the DTC of translate ECU.
(1) Release the parking brake pedal.
(2) Check the brake fluid level.
(3) Using SST, connect terminals Tc and E
1 of DLC1.
SST 09843-18020
(4) Turn the ignition switch ON.
(5) Read the DTC from the BRAKE warning light.
HINT:
If no code appears, inspect the diagnostic circuit, and
BRAKE warning light circuit.
Trouble AreaSee page
Tc terminal circuitDI-342
BRAKE warning light circuitDI-330
When the parking brake is applied or the level of the brake
fluid is low, the BRAKE warning light is lit.
If every sensor is normal, a normal code is output. (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated.)
If 2 or more malfunction codes are identified at the same
time, the lowest numbered code will be displayed 1st.
Page 732 of 1897
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-263
419 Author: Date:
2001 AVALON (RM808U) Ts (A20 - 42) - GND (A20 - 28,
29)
LG-B e W-BIG switch ON10 - 14
CSW (A20 - 44) - GND (A20 -WLWBIG switch ON, VSC OFF indicator ONBelow 1.5CSW (A20 44) GND (A20
28, 29)W-L e W-BIG switch ON, VSC OFF indicator OFF8 - 14
D/G (A20 - 46) - GND (A20 -
28, 29)W e W-BIG switch ON10 - 14
STP (A20 - 48) - GND (A20 -GWWBStop light switch ON (Brake pedal pushed)8 - 14STP (A20 48) GND (A20
28, 29)G-W e W-BStop light switch OFF (Brake pedal released)Below 1.5
SMC1 (A20 - 49) - GND (A20
- 28, 29)G-Y e W-BIG switch ON, ABS warning light OFF10 - 14
SMC2 (A20 - 50) - GND (A20
- 28, 29)V-W e W-BIG switch ON, ABS warning light OFF10 - 14
BAT (A20 - 51) - GND (A20 -
28, 29)W-L e W-BIG switch OFF10 - 14
SRC2 (A20 - 52) - GND (A20 -
28, 29)R-B e W-BIG switch ON, ABS warning light OFF10 - 14
SRLH (A20 - 53) - GND (A20 -
28, 29)Y-B e W-BIG switch ON, ABS warning light OFF10 - 14
SRC1 (A20 - 54) - GND (A20 -
28, 29)B-Y e W-BIG switch ON, ABS warning light OFF10 - 14
SFRR (A20 - 55) - GND (A20
- 28, 29)W-G e W-BIG switch ON, ABS warning light OFF10 - 14
SS1 (A20 - 59) - GND (A20 -
28, 29)W e W-BIG switch ONPulse generation
FSS (A20 - 60) - GND (A20 -
28, 29)BR e W-BIG switch OFFContinuity
SS2 (A20 - 61) - GND (A20 -
28, 29)O e W-BIG switch ONPulse generation
VCM (A20 - 65) - GND (A20 -
28, 29)P-L e W-BIG switch ON4.5 - 5.5
PMC (A20 - 66) - GND (A20 -
28, 29)R-L e W-BIG switch ON, brake pedal released0.3 - 0.8
E2 (A20 - 67) - GND (A20 -
28, 29)BR-Y e W-BIG switch OFFContinuity
SP1 (A20 - 68) - GND (A20 -
28, 29)L-O e W-BVehicle driveing at about 20 km/h (12 mph)Pulse generation
WT (A20 - 69) - GND (A20 -YRWBIG switch ON, VSC OFF indicator light ONBelow 2.0WT (A20 69) GND (A20
28, 29)Y-R e W-BIG switch ON, VSC OFF indicator light OFF10 - 14
VSCW (A20 - 70) - GND (A20PBWBIG switch ON, VSC warning light ONBelow 2.0VSCW (A20 70) GND (A20
- 28, 29)P-B e W-BIG switch ON, VSC warning light OFF10 - 14
PKB (A20 - 74) - GND (A20 -YGWBIG switch ON, parking brake switch ONBelow 2.0PKB (A20 74) GND (A20
28, 29)Y-G e W-BIG switch ON, parking brake switch OFF10 - 14
YD (A20 - 75) - GND (A20 -
28, 29)BR e W-BIG switch ON, VSC warning light OFF4.5 - 5.5
GYAW (A20 - 76) - GND (A20
- 28, 29)Y e W-BIG switch OFFContinuity
YAW (A20 - 77) - GND (A20 -
28, 29)L e W-BIG switch ON, vehicle stationaly condition2 - 3
Page 734 of 1897
F07885
1 2 3 4 5 6 7 8 9 10
11 12 13
14
21 22 23 24 25 26
15
16 17 18 19 20
T5
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-265
421 Author: Date:
2001 AVALON (RM808U)
Translate ECU:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG1(T5 - 1) - GND (T5 - 14)Y-R e W-BIG switch ON10 - 14
PKB2 (T5 - 2) - GND (T5 -YGWBIG switch ON, paking brake switch ONBelow 2.0PKB2 (T5 2) GND (T5
14)Y-G e W-BIG switch ON, paking brake switch OFF10 - 14
VSC+ (T5 - 4) - VSC- (T5 -
17)W e OEngine idlingPulse generation
SS1 (T5 - 5) - SS2 (T5 - 18)L e B-WEngine idlingPulse generation
RSS (T5 - 6) - GND (T5 - 14)BR e W-BIG switch OFFContinuity
P (T5 10) GND (T5 14)GWWBIG switch ON, shift lever is in P range8 - 14P (T5 - 10) - GND (T5 - 14)G-W e W-BIG switch ON, shift lever is in other than P rangeBelow 1.5
LVL2 (T5 - 11) - GND (T5 - 14)R-W e W-BIG switch ON, fluid level switch ONBelow 1.5
D (T5 12) GND (T5 14)YRWBIG switch ON, shift lever is in D range8 - 14D (T5 - 12) - GND (T5 - 14)Y-R e W-BIG switch ON, shift lever is in other than D rangeBelow 1.5
NEO (T5 - 13) - GND (T5 - 14)Y-B e W-BEngine idlingPulse generation
PKB (T5 - 15) - GND (T5 - 14)Y-G e W-BIG switch OFF, parking brake switch ONBelow 2.0
BRL (T5 16) GND (T5 14)RWWBIG switch ON, BRAKE warning light ONBelow 2.0BRL (T5 - 16) - GND (T5 - 14)R-W e W-BIG switch ON, BRAKE warning light OFF10 - 14
TRC+ (T5 - 20) - TRC- (T5 -
7)BR e W-BEngine idlingPulse generation
Tc (T5 - 21) - GND (T5 - 14)LG-R e W-BIG switch ON10 - 14
ENG+ (T5 - 22) - ENG- (T5 -
9)V e GREngine idlingPulse generation
Ts (T5 - 24) - GND (T5 - 14)LG-B e W-BIG switch ON10 - 14
LBL (T5 - 25) - GND (T5 - 14)L-B e W-BIG switch ON, fluid level switch ONBelow 1.0
CCS (T5 - 26) - GND (T5 - 14)Y-R e W-BIG switch ONBelow 2.0
Page 776 of 1897
D07227D07228D07756
Column Shift:
Floor Shift:
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-165
321 Author: Date:
2001 AVALON (RM808U)
(c) L position test
Shift into the 2 position and fully depress the accelerator pedal and check the following points:
(1) Check no up-shift.
While running in the L position, check that there is no up-shift to 2nd gear.
(2) Check engine braking.
While running in the L position, release the accelerator pedal and check the engine braking ef-
fect.
(3) Check for abnormal noises during acceleration and deceleration.
(d) R position test
Shift into the R position and fully depress the accelerator pedal and check for slipping.
CAUTION:
Before conducting this test ensure that the test area is free from people and obstruction.
(e) P position test
Stop the vehicle on a grade (more than 5°) and after shifting into the P position, release the parking
brake. Then, check to see that the parking lock pawl holds the vehicle in place.
5. BASIC INSPECTION
(a) Check the fluid level.
HINT:
Drive the vehicle so that the engine and transaxle are at
normal operating temperature.
Fluid temp.: 70 - 80 °C (158 - 176 °F)
Only use the COOL range on the dipstick as a rough refer-
ence when the fluid is replaced or the engine does not
run.
(1) Park the vehicle on a level surface and set the park-
ing brake.
(2) With the engine idling and the brake pedal de-
pressed, shift the shift lever into all positions from P
to L position and return to P position.
Page 779 of 1897
Q04700
Neutral Basic Line
BoltBolt
Groove DI-168
- DIAGNOSTICSAUTOMATIC TRANSAXLE
324 Author: Date:
2001 AVALON (RM808U)
(g) Inspect and adjust the park/neutral position.
Check that the engine can be started with the shift lever
only in the N or P position, but not in other positions.
If it is not as stated above, carry out the following adjustment
procedures.
(1) Loosen the park/neutral position switch bolt and set
the shift lever to the N position.
(2) Align the groove and neutral basic line.
(3) Hold in position and tighten the bolt.
Torque: 5.4 N´m (55 kgf´cm, 48 in´lbf)
For continuity inspection of the park/neutral position
switch, see page DI-199.
(h) Check the idle speed.
Idle speed: 700 ± 50 rpm
(In N position and air conditioner OFF)
6. MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:
Do the test at normal operating fluid temperature 50 - 80 °C (122 - 176 °F).
Do not continuously run this test longer than 5 seconds.
To ensure safety, conduct this test in a wide, clear level area which provides good traction.
The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an OBD II scan tool or TOYOTA hand-held tester to DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressing firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
Quickly read the stall speed at this time.
Stall speed: 2,325 - 2,775 rpm
(7) Do the same test in R position.
Stall speed: 2,325 - 2,775 rpm
Evaluation:
ProblemPossible cause
(a) Stall speed low in D and R positions
Engine output may be insufficient
Stator one-way clutch is operating properly
HINT: If more than 600 rpm below the specified value, the torque
converter clutch could be faulty.
(b) Stall speed high in D position
Line pressure too low
Forward clutch slipping
No.2 one-way clutch not operating properly
O/D clutch slipping
Page 780 of 1897
- DIAGNOSTICSAUTOMATIC TRANSAXLE
DI-169
325 Author: Date:
2001 AVALON (RM808U) (c) Stall speed high in R position
Line pressure too low
Direct clutch slipping
1st & reverse brake slipping
O/D clutch slipping
(d) Stall speed high in D and R positions
Line pressure too low
Improper fluid level
O/D one-way clutch not operating properly
(b) Measure the time lag.
When the shift lever is shifted while the engine is idling, there will be a certain time lapse or lag before
the shock can be felt. This is used for checking the conditions of the O/D direct clutch, forward clutch,
and 1st & reverse brake.
NOTICE:
Do the test at normal operating fluid temperature 50 - 80 °C (122 - 176 °F).
Be sure to allow 1 minute interval between tests.
Take 3 measurements and take the average value.
(1) Connect an OBD II scan tool or TOYOTA hand-held tester to DLC3.
(2) Fully apply the parking brake.
(3) Start the engine and check idle speed.
Idle speed: 700 ± 50 rpm (In N position and air conditioner OFF)
(4) Shift the shift lever from N to D position. Using a stop watch, measure the time from when the
lever is shifted until the shock is felt.
Time lag: N " D Less than 1.2 seconds
In the same manner, measure the time lag for N " R.
Time lag: N " R Less than 1.5 seconds
Evaluation (If N " D time or N " R time lag is longer than the specified):
ProblemPossible cause
N " D time lag is longer
Line pressure too low
Forward clutch worn
O/D one-way clutch not operating
N " R time lag is longer
Line pressure too low
Direct clutch worn
1st & reverse brake worn
O/D one-way clutch not operating properly
Page 781 of 1897
DI-170
- DIAGNOSTICSAUTOMATIC TRANSAXLE
326 Author: Date:
2001 AVALON (RM808U)
7. HYDRAULIC TEST
Measure the line pressure.
NOTICE:
Do the test at normal operation fluid temperature 50 - 80 °C (122 - 176 °F).
The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the transaxle case front left side and connect SST (See page AX-33
for the location to connect SST).
SST 09992-00095 (09992-00231, 09992-00271)
(3) Fully apply the parking brake and chock the 4 wheels.
(4) Connect an OBD II scan tool or TOYOTA hand-held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake pedal and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down. Quickly read the highest line pressure when
engine speed reaches stall speed.
(9) In the same manner, do the test in R position.
Specified line pressure:
ConditionD position kPa (kgf/cm2, psi)R position kPa (kgf/cm2, psi)
Idling401 - 461 (4.1 - 4.7, 58 - 66)804 - 882 (8.2 - 9.0, 117 - 128)
Stall1,138 - 1,236 (11.6 - 12.6, 165 - 179)1,716 - 1,854 (17.5 - 18.9, 249 - 269)
If the measured pressure is not up to the specified value, recheck the throttle cable adjustment and retest.
Evaluation:
ProblemPossible cause
If the measured values at all positions are higher
Throttle cable out of adjustment
Throttle valve defective
Regulator valve defective
If the measured values at all positions are lower
Throttle cable out of adjustment
Throttle valve defective
Regulator valve defective
Oil pump defective
O/D direct clutch defective
If pressure is low in the D position onlyD position circuit fluid leakage
Forward clutch defective
If pressure is low in the R position only
R position circuit fluid leakage
Direct clutch defective
1st & reverse brake defective
Page 814 of 1897
I13643
P3
Parking Brake
Switch
1
Y-G Y-G5
5
3B 3A15
B4Body ECU
PKB J/B No. 3 DI-670
- DIAGNOSTICSBODY CONTROL SYSTEM
826 Author: Date:
2001 AVALON (RM808U)
Parking brake switch circuit
WIRING DIAGRAM
DI29Y-05