Lexus ES300 (1997 year). Manual — part 335
–
DIAGNOSTICS
ENGINE
DI–117
269
1997 LEXUS ES300 (RM511U)
DTC
P1335
Crankshaft Position Sensor Circuit
Malfunction (during engine running)
CIRCUIT DESCRIPTION
Refer to DTC P0335 (Crankshaft Position Sensor ”A” Circuit Malfunction) on page
.
DTC No.
DTC Detecting Condition
Trouble Area
P1335
No crankshaft position sensor signal to ECM with engine
speed 1,000 rpm or more
Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Starter
ECM
WIRING DIAGRAM
Refer to DTC P0335 on page
INSPECTION PROCEDURE
Refer to DTC P0335 (Crankshaft Position Sensor ”A” Circuit Malfunction) on page
.
DI0A1–01
S06113
Close
←
Valve Opening
→
Open
0V
5V
Output
V
oltage
S05464
EGR Valve Position Sensor
3
ECM
E9
1
2
E9
E8
Y
W–G
BR
1
15
22
VC
5V
EGLS
E2
DI–118
–
DIAGNOSTICS
ENGINE
270
1997 LEXUS ES300 (RM511U)
DTC
P1410
EGR Valve Position Sensor Circuit
Malfunction
CIRCUIT DESCRIPTION
The EGR valve position sensor is mounted on the EGR valve
and detects the lift amount of EGR valve. The lift amount of
EGR valve which is detected by the EGR valve position sensor
provides feedback to the ECM to control the lift amount of EGR
valve in response to engine operating conditions.
DTC No.
DTC Detecting Condition
Trouble Area
P1410
Open or short in EGR valve position sensor circuit
(2 trip detection logic)
Open or short in EGR valve position sensor circuit
EGR valve position sensor
ECM
WIRING DIAGRAM
DI0A2–01
A00379
ON
1(+)
BE6653
S05694
S05742
1
2
–
DIAGNOSTICS
ENGINE
DI–119
271
1997 LEXUS ES300 (RM511U)
INSPECTION PROCEDURE
HINT:If DTC ”P0110” (Intake Air Temp. Circuit Malfunction), ”P0115” (Engine Coolant Temp. Circuit Malfunc-
tion), ”P0120” (Throttle/Pedal Position/Switch ”A” Circuit Malfunction), ”P1410” (EGR Valve Position Sensor
Circuit Malfunction) are output simultaneously, E2 (Sensor Ground) may be open.
1
Check voltage between terminal VC of wire harness side connector and body
ground.
PREPARATION:
(a)
Disconnect the vacuum hose from EGR valve.
(b)
Disconnect the EGR valve position sensor connector.
(c)
Turn ignition switch ON.
CHECK:
Measure voltage between terminal 1 of wire harness side con-
nector and body ground.
OK:
Voltage: 4.5
∼
5.5 V
NG
Go to step 4.
OK
2
Check EGR valve position sensor.
PREPARATION:
Disconnect the EGR valve position sensor connector.
CHECK:
Measure resistance between terminals 1(VC) and 2(E2) of
EGR valve position sensor.
OK:
Resistance: 1.5
∼
4.3 k
Ω
NG
Replace EGR valve position sensor.
OK
A00380
ON
E2(–)
EGLS(+)
BE6653
S05695
DI–120
–
DIAGNOSTICS
ENGINE
272
1997 LEXUS ES300 (RM511U)
3
Check voltage between terminals EGLS and E2 of ECM connectors.
PREPARATION:
(a)
Disconnect the vacuum hose from EGR valve.
(b)
Connect the hand–held vacuum pump to EGR valve.
(c)
Remove the glove compartment (See page
).
(d)
Turn ignition switch ON.
CHECK:
Measure voltage between terminals EGLS and E2 of ECM con-
nectors.
OK:
Condition
Condition
Voltage
EGR valve
Vacuum
Voltage
Fully closed
0 kPa
(0 mmHg, 0 in.Hg)
0.4
∼
1.6 V
Fully open
17.3 kPa
(130 mmHg, 5.12 in.Hg)
3.2
∼
5.1 V
NG
Check for open and short in harness and
connector between ECM and EGR valve
position sensor (EGLS or E2 line).
OK
Check and replace ECM (See page
).
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст