2001 TOYOTA PRIUS Service Repair Manual

2001 PRIUS (EWD414U)
E7 (A), E8 (B), E9 (C), E10 (D) ENGINE CONTROL MODULE
BATT±E1 : Always approx. 9±14 volts
+B±E1 :9±14 volts with the ignition SW on and the engine stopping
VC±E2 :4.5±5.5 volts with the ignition SW on and the engine stopping
IGF±E1 : Pulse generation with the engine idling
THA±E2 :0.5±3.4 volts with the engine idling and the intake air temp. 20°C (68°F)
THW±E2 :0.2±1.0 volts with the engine idling and the engine coolant temp. 80°C (176°F)
W±E1 :9±14 volts with the engine idling
:0±3 volts with the ignition SW on and the engine coolant temp. sensor connector disconnects
ESTP±E1 :9±14 volts with the brake pedal depressed
FC±E01 :9±14 volts with the ignition SW on and the engine stopping
:0±3 volts with the engine idling
+BM±E1 : Always approx. 9±14 volts
MREL±E1 :9±14 volts with the ignition SW on and the engine stopping
EVP1±E1 :9±14 volts with the ignition SW on and the engine stopping
HT1A, HT1B :9±14 volts with the ignition SW on and the engine stopping
TC±E1 :9±14 volts with the ignition SW on and the engine stopping
KNK1±E2 : Pulse generation with the engine idling
NE+, G2±NE± : Pulse generation with the engine idling
OCV+ ±OCV± : Pulse generation with the ignition SW on and the engine stopping
IGT1, IGT2, IGT3, IGT4±E1 : Pulse generation with the engine idling
#10, #20, #30, #40±E01 : Pulse generation with the engine idling
E01, E02, E03, E1, E2, ME01±GROUND : Always continuity
E1 ENGINE COOLANT TEMP. SENSOR
2±1 : Approx. 14.96 kW (±20 °C, ±4 °F)
Approx. 2.44 kW (20 °C, 68 °F)
Approx. 0.31 kW (80 °C, 176 °F)
Approx. 0.14 kW (110 °C, 230 °F)
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A736H12B37J1737
A836H14D37J1837
B836I135J22A37
C134I235J23B37
C234I335J24A37
C634I435J25B37
C10A36I535J2637
C11B36I635K135
D236I735M135
E134I835N135
E7A36I1537O135
E8B36J137S337
E9C36J4A37T235
E10D36J5B37T335
F12C34J737V135
F13D34J8A37V235
F1638J9B37V335
F1838J1137V439
G137J14A37V539
H334J15B37V639
H937J1637
SERVICE HINTS

2001 PRIUS (EWD414U)
ENGINE CONTROL
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A27Engine Wire and Engine Room J/B (Engine Compartment Left)
1B
1F27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)1J27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1K
2A
2B30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)2C30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2D
2G31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K31Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA140Engine Wire and Engine No.4 Wire (Near the Radiator Fan)
IA142Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)IA242Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
ID142Instrument Panel Wire and Cowl Wire (Left Kick Panel)ID242Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IE142Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IK144Engine Wire and Engine Room Main Wire (Right Kick Panel)
IO144Engine Wire and Cowl Wire (Right Kick Panel)
BC146Cowl Wire and Fuel Tank Wire (Near the Fuel Tank)
: GROUND POINTS
CodeSee PageGround Points Location
EA40Engine BlockEB40Engine Block
ID42Cowl Side Panel LHIE42Cowl Side Panel LH
IG42Cowl Side Panel RH
IH42Right Kick Panel
BL46Near the Fuel Tank
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E340Engine WireI644Instrument Panel Wire
E440Engine WireI744Engine Wire

2001 PRIUS (EWD414U)
MEMO

2001 PRIUS (EWD414U)
HYBRID VEHICLE IMMOBILISER SYSTEM
7. 5A
ECU±B FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2C 5
A A AA F
B H
5JUNCTION
CONNECTOR J20
JUNCTION
CONNECTOR J11 1
12
R±G R±G R±G LG±B
W±B W± B W±B
+B HEVC
IND
JUNCTION
CONNECTORB J27 A , J28
ID2 10 ID2 11 76
15A
AM2
1B 21J 92C 2
2G 1
D 1C 1
120A MAIN
1AM2 IG2
ST2
IFC 8
B 7B E
A A
JUNCTION
CONNECTORB J27 A , J28
JUNCTION
CONNECTORB J27 A , J28
B F
A D
JUNCTION
CONNECTORB J12 A , J13
B D
A B
JUNCTION
CONNECTORB J27 A , J28
A A
B A
JUNCTION
CONNECTORB J24 A , J25
ID A A
2D 8
1 2ID1 9B B
IB1 3
1 ID2 8
JUNCTION
CONNECTOR J10
JUNCTION
CONNECTOR J20
46711 7
238
6DATA LINK
CONNECTOR 3 D 2
HYBRID VEHICLE
CONTROL ECU H14
CENTER
CLUSTER SW C 7
DOOR COURTESY
SW FRONT LH D 6
UNLOCK WARNING SW U 1RADIO AND PLAYERC R 3 B , R 4FUSIBLE LINK
BLOCK NO. 1D F1 2 C , F13 BATTERYB±G B W±R W±R
B±W B±W B±W
B±R
B±WB±R R±W
L±B
W±BL±B L±B L±B
W±BR±W R±WLG±B BR BR
LG±B
2K 8
A IG D
KSW CTY
LG±B
FUSIBLE LINK
BLOCK NO. 2 F18
W±B
W± B ID1 8
R±G
IGNITION SW I15
OP1 FC VC
GND
TRANSPONDER KEY
COMPUTER T 4 A C
A CJUNCTION
CONNECTORJ24 A