Page 617 of 5135
B12608
A76903
E12
ECM Connector
FP+
FP± E1
E11
A14558
Normal Signal Waveforms
5 msec./Division 10 V/
Division
GND FP±
FP+
05±478
±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
1CHECK OPERATION OF FUEL PUMP(HIGH PRESSURE)
(a)With the engine running or cranking, use a sound scope to check that there is the normal operating sounds of the
fuel pump (high±pressure) when it is operated.
Standard:
There is the operating sounds of the fuel pump (high±
pressure).
NGREPLACE FUEL PUMP (HIGH PRESSURE)
OK
2INSPECT ECM(FP+ AND FP± VOLTAGE)
(a)Turn the ignition switch ON, and check the waveforms be- tween terminals FP+ and E1, and FP± and E1 of the E11
and E12 ECM connectors.
HINT:
The correct waveform is as shown in the illustration.
NGCHECK AND REPLACE ECM (See page 01±32)
OK
3CHECK FUEL PUMP(HIGH PRESSURE) (See page 11±33)
NG REPLACE FUEL PUMP(HIGH PRESSURE)
OK
Page 618 of 5135
A81695
E12
ECM Connector FP+FP±
A81702
S3
Fuel Pump Connector
(High Pressure) Wire Harness Side
± DIAGNOSTICSSFI SYSTEM (1AZ±FSE)
05±479
AVENSIS REPAIR MANUAL (RM1018E)
4 CHECK HARNESS AND CONNECTOR(FUEL PUMP (HIGH PRESSURE) ± ECM)
(a) Disconnect the E12 ECM connector.
(b) Disconnect the S3 fuel pump (high pressure) connector.
(c) Check for continuity between the wire harness side con-
nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
FP+ (E12±6) ± Fuel pump (S3±1)ContinuityFP± (E12±3) ± Fuel pump (S3±2)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
FP+ (E12±6) or Fuel pump (S3±1) ± Body groundNo continuityFP± (E12±3) or Fuel pump (S3±2) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK FOR INTERMITTENT PROBLEMS
Page 619 of 5135

054JF±04
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
05±551
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
When the malfunction code is not confirmed the DTC check and the problem sti\
ll can not be confirmed in
the basic inspection, then proceed to this step and perform troubleshooting\
according to the numbered order
given in the table below.
SymptomSuspect AreaSee page
Does not crank (Difficult to start)
2. Starter
3. Starter relay
4. Engine coolant temperature sensor19±22
19±22
10±56
Difficult to start with a cold engine
1. STA signal circuit
2. Injector
3. Fuel filter
4. Compression
5. EC
6. Supply pump
7. Fuel pressure sensor
8. Diesel throttle
9. Glow plug system05±691 11±56
11±82
14±266 10±56
10±56
10±56
10±56
10±56
Difficult to start with a warm engine
1. STA signal circuit
2. Injector
3. Fuel filter
4. Compression
5. EC
6. Supply pump
7. Fuel pressure sensor
8. Diesel throttle05±691 11±56
11±82
14±266 10±56
10±56
10±56
10±56
Engine stalls soon after starting
1. Fuel filter
2. Injector
3. EC power source circuit
4. EC
5. Supply pump
6. Fuel pressure sensor
7. Diesel throttle11±82
11±56
05±686 10±56
10±56
10±56
10±56
Engine stalls (Other than conditions listed abobe)
1. EC power source circuit
2. Injector
3. EC
4. Supply pump
5. Fuel pressure sensor
6. Diesel throttle05±686 11±56
10±56
10±56
10±56
10±56
Incorrect first idle (Poor idling)
1. Fuel filter
2. Injector
3. EC
4. Supply pump
5. Fuel pressure sensor11±82
11±56
10±56
10±56
10±56
High engine idle speed (Poor idling)
1. A/C signal circuit
2. Injector
3. STA signal circuit
4. EC
5. Supply pump
6. Fuel pressure sensor55±3
11±56
05±691 10±56
10±56
10±56
Page 620 of 5135

05±552
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
Lower engine idle speed (Poor idling)
1. A/C signal circuit
2. Injector
3. EGR system
4. Compression
5. Valve clearance
6. Fuel line (Air bleed)
7. EC
8. Supply pump
9. Fuel pressure sensor
10.Diesel throttle55±3
11±56
12±16
14±266
14±270 ±
10±56
10±56
10±56
10±56
Rough idling (Poor idling)
1. Injector
2. Fuel line (Air bleed)
3. EGR system
4. Compression
5. Valve clearance
6. EC
7. Supply pump
8. Fuel pressure sensor
9. Diesel throttle11±56 ±
12±16
14±266
14±270 10±56
10±56
10±56
10±56
Hunting at hot engine (Poor idling)
1. Injector
2. EC power source circuit
3. Compression
4. Fuel line (Air bleed)
5. Valve clearance
6. EC
7. Supply pump
8. Fuel pressure sensor
9. Diesel throttle11±56
05±686
14±266 ±
14±270
10±56
10±56
10±56
10±56
Hunting at cold engine (Poor idling)
1. Injector
2. EC power source circuit
3. Compression
4. Fuel line (Air bleed)
5. Valve clearance
6. EC
7. Supply pump
8. Fuel pressure sensor
9. Diesel throttle11±56
05±686
14±266 ±
14±270
10±56
10±56
10±56
10±56
Hesitation/ Poor acceleration (Poor driveability)
1. Injector
2. Fuel filter
3. EGR system
4. Compression
5. EC
6. Supply pump
7. Fuel pressure sensor
8. Diesel throttle11±56
11±82
12±16
14±266 10±56
10±56
10±56
10±56
Knocking (Poor driveability)
1. Injector
2. EGR system
3. EC
4. Supply pump
5. Fuel pressure sensor11±56
12±16
10±56
10±56
10±56
Black smoke (Poor driveability)
1. Injector
2. EGR system
3. EC
4. Supply pump
5. Fuel pressure sensor
6. Diesel throttle11±56
12±16
10±56
10±56
10±56
10±56
Page 621 of 5135
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
05±553
AVENSIS REPAIR MANUAL (RM1018E)
White smoke (Poor driveability)
1. EGR system
2. Injector
3. Fuel filter
4. EC
5. Supply pump
6. Fuel pressure sensor
7. Diesel throttle12±16
11±56
11±82
10±56
10±56
10±56
10±56
Surging/ Hunting (Poor driveability)
1. Injector
2. EC
3. Supply pump
4. Fuel pressure sensor11±56
10±56
10±56
10±56
Page 622 of 5135

054KK±04
A66714
E13E12E10
E9
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
05±549
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECM
Symbols (Terminal No.)Wiring ColorConditionSTD Voltage (V)
BATT (E10±2) ± E1 (E12±7)B±Y ± BRAlways9 to 14
IGSW (E9±9) ± E1 (E12±7)B±W ± BRIG switch ON9 to 14
+B (E9±1) ± E1 (E12±7)B±W ± BRIG switch ON9 to 14
MREL (E9 8) E1 (E12 7)GR BRIG switch ON9 to 14MREL (E9±8) ± E1 (E12±7)GR ± BRIG switch OFF0 to 1.5
VC (E13±18) ± E1 (E12±7)R±W ± BRIG switch ON4.5 to 5.5
VPA (E9 22) EPA (E9 28)GYIG switch ON, accelerator pedal fully released0.5 to 1.1VPA (E9±22) ± EPA (E9±28)G ± YIG switch ON, accelerator pedal fully depressed3.0 to 4.6
VPA2 (E9 23) EPA2 (E9 29)WYIG switch ON, accelerator pedal fully released0.9 to 2.3VPA2 (E9±23) ± EPA2 (E9±29)W ± YIG switch ON, accelerator pedal fully depressed3.4 to 5.0
VCPA (E9±26) ± EPA (E9±28)B ± YIG switch ON4.5 to 5.5
VCP2 (E9±27) ± EPA2 (E9±29)B ± YIG switch ON4.5 to 5.5
VG (E12±24) ± EVG (E12±32)G ± L±YIdling0.5 to 3.4
THA (E13±31) ± E2 (E13±28)G±R ± BRIdling, intake air temp. at 20 C (68 F)0.5 to 3.4
THW (E13±19) ± E2 (E13±28)B±W ± BRIdling, engine coolant temp. at 80 C (176 F)0.2 to 1.0
STA (E9±7) ± E1 (E12±7)B±Y ± BRCranking6.0 or more
#1 (E13±24) ± E1 (E12±7)
#2 (E13±23) ± E1 (E12±7)G±W ± BR
W±R ± BR
IdlingPulse generation#2 (E13 23) E1 (E12 7)
#3 (E13±22) ± E1 (E12±7)
#4 (E13±21) ± E1 (E12±7)
WR BR
R±W ± BR W±L ± BRIdlingPulse generation
(See page 05±604)
G1 (E12±23) ± G± (E12±31)P ± LIdlingPulse generation
(See page 05±616)
NE+ (E13±27) ± NE± (E13±34)G ± RIdlingPulse generation
(See page 05±616)
STP (E10 19) E1 (E12 7)GW BRIG switch on, brake pedal is depressed7.5 to 14STP (E10±19) ± E1 (E12±7)G±W ± BRIG switch on, brake pedal is released0 to 1.5
ST1 (E10 12) E1 (E12 7)GW BRBrake pedal is depressed0 to 1.5ST1± (E10±12) ± E1 (E12±7)G±W ± BRBrake pedal is released7.5 to 14
TC (E9 11) E1 (E12 7)WL BRIG switch ON9to14TC (E9±11) ± E1 (E12±7)W±L ± BRIG switch ON9 to 14
W (E9 12) E1 (E12 7)WBRIdling9 to 14W (E9±12) ± E1 (E12±7)W ± BRIG switch ON0 to 3
SP1 (E10±17) ± E1 (E12±7)V±W ± BRIG switch ON, rotate driving wheel slowlyPulse generation
(See page 05±640)
SIL (E9±18) ± E1 (E12±7)W±G ± BRConnect the hand±held tester to the DLC3Pulse generation
Page 623 of 5135

05±550
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
Applied negative pressure of 40 kPa (300 mmHg, 11.8 in. hg)0.2 to 0.8
PIM (E12±28) ± E2 (E13±28)W±R ± BRSame as atmosphere1.3 to 1.9()()
Applied positive pressure of 69kPa (0.7 kg/cm3, 10.0
psi)3.2 to 3.8
IREL(E910)E1(E127)YBRIG switch OFF9 to 14IREL (E9±10) ± E1 (E12±7)Y ± BRIdling0 to 1.5
TACH (E9±5) ± E1 (E12±7)GR±R ± BRIdlingPulse generation
VCS (E12±2) ± E1 (E12±7)R±W ± BRIG switch ON4.5 to 5.5
GREL(E914)E1(E127)RBRCranking9 to 14GREL (E9±14) ± E1 (E12±7)R ± BRIdling0 to 1.5
FAN(E93)E1(E127)WBRFanOFF9 to 14FAN (E9±3) ± E1 (E12±7)W ± BRFanON0 to 1.5
THIA (E13±20) ± E2 (E13±28)GR ± BRIdling, intake air temp. at 80
C (176 F)0.5 to 3.4
THF (E13±29) ± E2 (E13±28)L ± BRIG switch ON0.5 to 3.4
PCR1 (E13±26) ± E2 (E13±28)P ± BRIdling1.8 to 2.1
PCR2 (E13±33) ± E2 (E13±28)P±B ± BRIdling1.2 to 1.5
ALT (E13±8) ± E1 (E12±7)B±L ± BRIdlingPulse generation
RL(E129)E1(E127)YBRIdling9 to 14RL (E12±9) ± E1 (E12±7)Y ± BRIG switch ON0 to 3
PCV+ (E13±2) ± PCV± (E13±1)LG±R ± LGIdlingPulse generation
(See page 05±563)
PRD (E13±32) ± E1 (E12±7)R±L ± BRIG switch OFF4 to 6.5
INJF (E13±25) ± E1 (E12±7)R±B ± BRIdlingPulse generation
(See page 05±604)
EG+A (E12±6) ± E1 (E12±7)G ± BREG+A (E12±6) ± E1 (E12±7)
EG±A (E12±5) ± E1 (E12±7)
G ± BR
Y±G ± BRIdlingPulse generationEG A (E12 5) E1 (E12 7)
EG+B (E12±4) ± E1 (E12±7)
YG BR
R±L ± BRIdlingPulse generation
(See page 05±629)()()
EG±B (E12±3) ± E1 (E12±7)G±B ± BR
(g )
LU+A (E13±15) ± E1 (E12±7)B ± BRLU+A (E13±15) ± E1 (E12±7)
LU±A (E13±14) ± E1 (E12±7)
B ± BR
G ± BRRacingPulse generationLU A (E13 14) E1 (E12 7)
LU+B (E13±13) ± E1 (E12±7)
G BR
Y ± BRRacingPulse generation
(See page 05±633)()()
LU±B (E13±12) ± E1 (E12±7)L ± BR
(g )
THOP (E13 11) E1 (E12 7)PL BRIdling9 to 14THOP (E13±11) ± E1 (E12±7)P±L ± BRIG switch ON0 to 3
VN (E13±10) ± E1 (E12±7)W ± BRIG switch ONPulse generation
(See page 05±554)
Page 624 of 5135
054JE±04
A80993
Mass Air Flow
Meter
DLC3
Accelerator Pedal Assy
(Accel Position Sensor) Injector
Diesel Turbo Inlet
Air Temperature Sensor
EGR Valve Assy
Engine Room R/B
No.3
Suction Control
Valve
Fuel Temperature
Sensor Common Rail Assy
(Fuel Pressure
Sensor Assy)Glow Plug Assy Camshaft Position
Sensor
Manifold Absolute
Pressure Sensor
EDU
ECM
Common Rail Assy
(Pressure Discharge Valve Assy)
Supply
Pump
Engine Room J/B
Engine Coolant Temperature Sensor
VRV
Crankshaft Position Sensor
Intake Shutter Assy
05±548
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION