TOYOTA CAMRY 2000 Service Repair Manual

!/B No.1
± 5S±FE ENGINELOCATION OF CONNECTORSEG1±331

Location of Connectors in Instrument Panel (Cont'd)
R/B No.6 R/B No.1J/B No.3 J/B No.1
± 5S±FE ENGINELOCATION OF CONNECTORSEG1±332

Location of Connectors in Body
CoupeSedan
± 5S±FE ENGINELOCATION OF CONNECTORSEG1±333

Location of Connectors in Body (Cont'd)
Wagon
± 5S±FE ENGINELOCATION OF CONNECTORSEG1±334

5S-FE ENGINE –
-Memo

CIRCUIT DESCRIPTION
The distributor in the Engine Control System contains 3 pickup coils.
The G signals inform the ECM of the standard crankshaft position.
The NE signals inform the ECM of the crankshaft position and the engine speed.
wDuring cranking or idling, check waveforms
between terminals G (+) and G (±),
NE (+) and NE (±) of engine control module.
HINT: The correct waveforms appear as shown
in the illustration on the left.
wOpen or short in NE, G circuit
wDistributor
wOpen or short in STA circuit
wECM No G signal to ECM for 3 sec. or more with
engine speed between 600 rpm and 4,000 rpm. No N E signal to ECM with 2 sec. or more after
cranking.
CIRCUIT INSPECTION
INSPECTION USING OSCILLOSCOPE
Diagnostic Trouble Code Detecting Condition
Reference
Trouble Area
DTC 12 G NE Signal Circuit (No.1) (Exc. California spec.)
DTC No.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±336

Check for open and short in harness and
connector between ECM and distributor.Check resistance of each pickup coils in
distributor.
Repair or replace harness or connector.
DIAGNOSTIC CHART
WIRING DIAGRAM
Replace distributor housing.
Replace distributor housing.
Check and replace ECM. Check air gap.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±337

Remove distributor cap and rotor.
Using a thickness gauge, measure the air gap be±
tween the signal rotor and pickup coil projection.
Air gap: 0.2 ± 0.4 mm (0.008 ± 0.006 in.)
Check for open and short in harness and connector between
engine control module and distributor (See page IN±31).
Disconnect distributor connector.
Measure resistance between each terminal
shown in table below.
ªColdº is from ±10
C (14
F) to 50
C (122
F) and
ªHotº is from 50
C (122
F) to 100
C (212
F).
Check resistance of each pickup coils in distributor.
Check and replace engine control module.Repair or replace harness or connector.
INSPECTION PROCEDURE
Replace distributor housing.Replace distributor housing.
NE Pickup Coil
(NE (+) ± NE (±) )
Check air gap.
G Pickup Coil
(G1 ±G (±))
475 ~ 650
370 ~ 550
240 ~ 325
185 ~ 275
Resistance
ColdCold
Hot
Hot
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±338

CIRCUIT DESCRIPTION
The distributor in the Engine Control System contains 3 pick±up coils (G1, G2 and NE).
The G1, G2 signals inform the ECM of the standard crankshaft angle.
The NE signals inform the ECM of the crankshaft angle and the engine speed.
wOpen or short in NE, G circuit.
wDistributor
wOpen or short in STA circuit.
wECM No NE or G1 and G2 signal to ECM for
2 sec. or more after cranking.Diagnostic Trouble Code Detecting Condition
Open in G (±) circuit.Trouble Area
DTC 12 G NE Signal Circuit (No.1) (Only for California spec.)
DTC No.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±339

Check for open and short in harness and
connector between ECM and distributor. Check resistance of each pickup coils in
distributor.
Repair or replace harness or connector.
DIAGNOSTIC CHART
WIRING DIAGRAM
Check and replace ECM.Replace distributor. Replace distributor.
Check air gap.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±340