2001 TOYOTA PRIUS Service Repair Manual

SS1HM±01
± SERVICE SPECIFICATIONSBODY
SS±35
157 Author: Date:
2001 PRIUS (RM778U)
BODY
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
FRONT BUMPER±±±
Side marker x Bumper1.71715 in.´lbf
HOOD±±±
Hood x Hinge131309
Hood lock x Body8.38574 in.´lbf
FRONT DOOR±±±
Outside view mirror x Door7.88069 in.´lbf
Window regulator arm x Door4.95043 in.´lbf
Window regulator body x Door8.38574 in.´lbf
Door lock x Door Bolt:4.95043 in.´lbf
Door lock x Door Screw:4.95043 in.´lbf
Outside handle x Door5.45548 in.´lbf
Hinge x Body4344032 in.´lbf
Hinge x Door4344032 in.´lbf
Door lock striker x Body2323017 in.´lbf
REAR DOOR±±±
Window regulator x Door5.45548 in.´lbf
Door lock x Door4.95043 in.´lbf
Outside handle x Body5.45548 in.´lbf
Hinge x Body2526019
Hinge x Door3031022
Door lock striker x Body2323017
LUGGAGE COMPARTMENT DOOR AND HINGE±±±
Door lock x Door5.45548 in.´lbf
Hinge x Door8.38574 in.´lbf
Door lock striker x Body5.45548 in.´lbf
FRONT WIPER AND WASHER±±±
Wiper arm x Wiper link2627020
Wiper motor x Wiper link Bolt:5.45548 in.´lbf
Wiper motor x Wiper link Nut:1717513
Wiper link x Outer front cowl top panel7.47565 in.´lbf
Outer front cowl top panel x Body5.45548 in.´lbf
ROOF HEADLINING±±±
Inner rear view mirror x Body2.93026 in.´lbf
INSTRUMENT PANEL±±±
Front passenger airbag assembly x Reinforcement2020415
FRONT SEAT±±±
Seat cushion frame x Body3738027
Seatback assembly x Seat cushion frame4344032
REAR SEAT±±±
Seatback assembly x Body7.98170 in.´lbf

SS±36
± SERVICE SPECIFICATIONSBODY
158 Author: Date:
2001 PRIUS (RM778U) SEAT BELT
±±±
Outer belt shoulder anchor x Anchor adjuster4243031
Anchor adjuster x Body4243031
Seat belt floor anchor x Body4243031
Retractor x Body Upper bolt:4.95043 in.´lbf
Retractor x Body Lower bolt:4243031
Inner belt x Seat cushion frame4142030
Rear seat belt retractor x Body4243031
Rear seat inner belt x Body4243031
CRS Tether anchor bracket x Body2020014
CRS Anchor bracket sub±assembly x Body3132023
SPOILER±±±
Rear spoiler x Body5.05144 in.´lbf

DI00H±16
FI0534
I12054
TOYOTA Hand±Held tester
DLC3
± DIAGNOSTICSENGINE
DI±3
2001 PRIUS (RM778U)
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) Description

When troubleshooting OBDII vehicles, the only dif-
ference from the usual troubleshooting procedure
is that you connect to the vehicle the OBDII scan
tool complying with SAE J1978 or TOYOTA hand±
held tester, and read off various data output from
the vehicle's ECM.

OBDII regulations require that the vehicle's on±
board computer lights up the Malfunction Indicator
Lamp (MIL) on the instrument panel when the com-
puter detects a malfunction in the emission control
system/components or in the powertrain control
components which affect vehicle emissions, or a
malfunction in the computer. In addition to the MIL
lighting up when a malfunction is detected, the ap-
plicable Diagnostic Trouble Code (DTC) prescribed
by SAE J2012 are recorded in the ECM memory
(See page DI±14).
If the malfunction does not reoccur in 3 consecutive trips, the
MIL goes off automatically but the DTCs remain recorded in the
ECM memory.

When DTC P3190, P3191 are detected and the re-
main of the fuel is little, the computer judges the
cause as a fuel shortage, and after the next trip,
when the supply of fuel is confirmed, it turns off MIL,
but the memory of DTC still remains.

To check the DTCs, connect the TOYOTA hand±
held tester or OBDII scan tool to Data Link Connec-
tor 3 (DLC3) on the vehicle. The TOYOTA hand±
held tester or OBDII scan tool also enables you to
erase the DTCs and check freezed frame data and
various forms of engine data. (For operating instruc-
tions, see the OBDII scan tool's instruction book.)

DTCs include SAE controlled codes and manufac-
turer controlled codes. SAE controlled codes must
be set as prescribed by the SAE, while manufactur-
er controlled codes can be set freely by the
manufacturer within the prescribed limits (See DTC
chart on page DI±14).

DI±4
± DIAGNOSTICSENGINE
2001 PRIUS (RM778U)

The diagnosis system operates in normal mode
during normal vehicle use. It also has a check mode
for technicians to simulate malfunction symptoms
and troubleshoot. Most DTCs use 2 trip detection
logic* to prevent erroneous detection, and ensure
thorough malfunction detection. By switching the
ECM to check mode when troubleshooting, the
technician can cause the MIL to light up for a mal-
function that is only detected once or momentarily
(TOYOTA hand±held tester only). (See step 2)

*2 trip detection logic:
When a malfunction is first detected, the malfunc-
tion is temporarily stored in the ECM memory (1st
trip).
If the same malfunction is first detected again during the second
drive test, this second detection causes the MIL to light up (2nd
trip). (However, the IG switch must be turned OFF between the
1st trip and the 2nd trip.)

Freeze frame data:
Freeze frame data records the engine condition
when a misfire (DTC P0300 ± P0304) or fuel trim
malfunction (DTC P0171, P0172) or other malfunc-
tion (first malfunction only), is detected.

Because freeze frame data records the engine
conditions (fuel system, calculated load, engine
coolant temperature, fuel trim,engine speed, ve-
hicle speed, etc.) when the malfunction is detected,
when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the en-
gine warmed up or not, the air±fuel ratio lean or rich,
etc. at the time of the malfunction.
Priorities for troubleshooting:
If troubleshooting priorities for multiple DTCs are given in the
applicable DTC chart, these should be followed.
If no instructions are given troubleshoot DTCs according to the
following priorities.
(1) DTCs other than fuel trim malfunction (DTC P0171,
P0172), and misfire (DTC P0300 ± P0304).
(2) Fuel trim malfunction (DTC P0171, P0172).
(3) Misfire (DTC P0300 ± P0304).