Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 13 20ur4 onvein40
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18-1
IGNITION - IGNITION SYSTEM
IGNITION SYSTEM
1807F-02
ON-VEHICLE INSPECTION
NOTICE:
"Cold" and "Hot" in this section mean the temperature of the coils themselves."Cold" is from -10_C
(14_F) to 50 _C (122 _F) and "Hot" is from 50 _C (122 _F) to 100 _C (212 _F).
1. INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TEST
(a) Check for DTCs.
NOTICE:
If DTC is present, perform a troubleshooting in accordance with a procedure for that DTC.
(b) Check that spark occurs.
(1) Remove the V-bank cover sub-assy. (See page 10-13 )
(2) Remove the ignition coils (with igniter).
(3) Using a 16mm (0.63 in) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil (with igniter) and connect the ignition coil connectors.
(5) Disconnect the 6 injector connectors.
(6) Ground the spark plugs.
(7) Check if spark occurs at each spark plug while engine is being cranked.
NOTICE:
S Be sure to ground the spark plug when checking.
S Replace the ignition coil when it is given physical impact.
S Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
SPARK TEST
NG
CHECK CONNECTION OF IGNITION COIL WITH IGNITER Connect securely.
CONNECTOR NG
OK
CHANGE IT TO NORMAL IGNITION COIL WITH IGNITER
AND PERFORM SPARK TEST AGAIN OK Replace ignition coil with igniter.
NG
CHECK POWER SUPPLY TO IGNITION COIL WITH
IGNITER Check wiring between ignition switch to
1. Turn ignition switch ON. ignition coil with igniter.
2. Check that there is battery voltage at ignition coil positive (+)
NG
terminal.
OK
CHECK RESISTANCE OF VVT SENSOR
(See page 18-3 ) Replace VVT sensor.
Cold Hot NG
Resistance: 835 to 1,400 1,060 to 1,645
OK
CHECK RESISTANCE OF CRANKSHAFT POSITION
SENSOR (See page 18-3 )
Replace crankshaft position sensor.
Cold Hot NG
Resistance: 1,630 to 2,740 2,065 to 3,225
OK
CHECK IGT SIGNAL FROM ECM
(See page 05-166 ) Check ECM (See page 01-37 )
NG
OK
REPAIR WIRING BETWEEN IGNITION COIL AND ECM
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2545
18-2
IGNITION - IGNITION SYSTEM
(c) Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
Torque: 25 Nm (250 kgfcm, 18 ftlbf)
(d) Install the ignition coil with igniter.
Torque: 8.0 Nm (82 kgfcm, 71 in.lbf)
(e) Install the V-bank cover sub-assy. (See page 10-13 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2546
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