diagnostic trouble code chart TOYOTA PRIUS 2001 Service Owner's Manual

± DIAGNOSTICSHV BATTERY CONTROL SYSTEM
DI±341
2001 PRIUS (RM778U) 4/27/01
DTC P3011±P3029 Battery Block # Malfunction
CIRCUIT DESCRIPTION
Internal resistance of each battery module is measured, detecting battery deterioration for each block, 1 to
19. Nineteen blocks of battery modules are arranged in the order of 1 to 19 from the ECU side.
DTC No.DTC Detecting ConditionTrouble Area
P3011±P3029Battery internal resistance is abnormal.
Battery ECU

Battery pack
INSPECTION PROCEDURE
1 Are there any other codes (besides DTC P3011±P3029) being outputs?
YES Go to relevant DTC chart.
NO
2 Check that the block voltage during charging/ discharging.
PREPARATION:
(a) To ensure safety, conduct this test in a wide, clear level area which provides good traction.
(b) Turn ON the ºREADYº light.
(c) Warm up the engine and turn off the A/C switch.
(d) Fully apply the parking brake and chock the 4 wheels.
(e) Connect a TOYOTA hand±held tester to DLC3 and select HV BATTERY and then CURRENT DATA.
(f) Show voltage of the block corresponding to the DTC and other block (any block except the above±
mentioned block).
CHECK:
(a) Keep your left foot pressed firmly on the brake pedal and shift into the R position.
(b) Confirm the engine stopped in the R position. Step on the accelerator pedal until the engine starts,
stepping on the brake pedal firmly.
(c) Release the accelerator pedal when the engine starts. At the same time, monitor the change of the
voltage before engine starting (during discharging) and after engine starting (during charging).
DI82C±01

DI28U±10
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM WITH EBD & RBS
DI±363
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing the part, turn the ignition switch OFF.
HINT:

Using SST 09843±18040, connect the terminals Tc and CG of DLC3.

If any abnormality is not found when inspecting parts, inspect the ECU.

If a malfunction code is displayed during the DTC check, check the circuit listed that code. For details
of each code, turn to the page referred to under the ºSee pageº for respective ºDTC No.º in the DTC
chart.
DTC No.
(See Page)Detection ItemTrouble Area
C0200/31*1
(DI±366)Right front wheel speed sensor signal malfunction
C0205/32*1
(DI±366)Left front wheel speed sensor signal malfunction
Right front, left front, right rear and left rear speed sensor
Eh d i itC0210/33*1
(DI±366)Right rear wheel speed sensor signal malfunction

Each speed sensor circuit

Sensor rotor
C0215/34*1
(DI±366)Left rear wheel speed sensor signal malfunction
C0226/21
(DI±373)Malfunction in ABS solenoid (SFR) circuit
SFRR or SFRH circuit

Brake actuator
C0236/22
(DI±373)Malfunction in ABS solenoid (SFL) circuit
SFLR or SFLH circuit

Brake actuator
C0246/23
(DI±373)Malfunction in ABS solenoid (SR) circuit
SRR or SRH circuit

Brake actuator
C0278/11
(DI±376)Open circuit in ABS solenoid relay circuit
ABS solenoid relay
C0279/12
(DI±376)Short circuit in ABS solenoid relay circuit

ABS solenoid relay

ABS solenoid relay circuit
C1202/58
(DI±380)Brake fluid level low
Open circuit in brake fluid level warning switch circuit
Brake fluid level

Brake fluid level warning switch

Brake fluid level warning switch circuit
C1211/61
(DI±382)Malfunction in linear solenoid (SLA) circuit
SLA+ or SLA± circuit

Brake actuator
C1212/62
(DI±382)Malfunction in linear solenoid (SLR) circuit
SLR+ or SLR± circuit

Brake actuator
C1213/63
(DI±384)Malfunction in HV ECU communication circuit

HVI+ or HVI± circuit

HVO+ or HVO± circuit

HV ECU
C1214/64
(DI±386)Malfunction in hydraulic system

Each pressure sensor

Each pressure sensor circuit

Fluid leakage
C1215/15
(DI±387)Low positive voltage of linear solenoid
Battery
Ch i tC1216/16
(DI±387)High positive voltage of linear solenoid

Charging system

Power source circuit
C1217/25
(DI±373)Malfunction in regenerative solenoid (SMC1) circuit
Regenerative solenoid (SMC1) circuit

Brake actuator
C1218/26
(DI±373)Malfunction in regenerative solenoid (SMC2) circuit
Regenerative solenoid (SMC2) circuit

Brake actuator

DI7QX±01
± DIAGNOSTICSELECTRIC MOTOR POWER STEERING
DI±465
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:

Using SST 09843±18040, connect terminals Tc and CG of the DLC3.

If a malfunction code is displayed during the DTC check, check the circuit listed for the code. For details
of each code, turn to the page referred to under the ºSee pageº for respective ºDTC No.º in the DTC
chart.
DTC No.
(See page)Detection ItemTrouble Area
C1511/11
(DI±465)
C1512/12
(DI±465)
T i it lf ti
Torque sensor
C1513/13
(DI±465)Torque sensor circuit malfunction
Torque sensor

EMPS ECU
C1514/14
(DI±465)
C1521/21
(DI±471)
C1522/22
(DI±471)
Mt i it lf ti
Power steering gear assembly with motor
C1523/23
(DI±471)Motor circuit malfunction
Power steering gear assembly with motor

EMPS ECU
C1524/24
(DI±471)
C1531/31
(DI±473)
C1532/32
(DI±473)EMPS ECU malfunctionEMPS ECU
C1533/33
(DI±473)
C1541/41
(DI±474)
C1542/42
(DI±474)Speed sensor malfunction

Speed sensor

Brake ECU

EMPS ECUC1543/43
(DI±474)
EMPS ECU
C1551/51
(DI±476)IG power source circuit malfunction

EMPS ECU

Power source circuit

Charging system
C1552/52
(DI±479)PIG power source drop voltage malfunction
EMPS ECU

Power source circuit
C1553/53
(DI±482)When resetting voltage, vehicle is being drivenEMPS ECU
C1554/54
(DI±483)EMPS relay circuit malfunction

EMPS relay

EMPS ECU

EMPS relay circuit
C1555/55
(DI±473)EMPS ECU malfunctionEMPS ECU
C1556/56
(DI±486)P/S warning light circuit
Multiinformation display

EMPS ECU

DI6OZ±06
DI±508
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table
below (Proceed to the page given for that circuit.).
DTC No.
(See Page)Detection ItemTrouble AreaSRS
Warning Light
B0100/13
(DI±510)

Short in D squib circuit
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0101/14
(DI±515)

Open in D squib circuit
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0102/11
(DI±519)

Short in D squib circuit (to ground)
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0103/12
(DI±523)

Short in D squib circuit (to B+)
Steering wheel pad (squib)

Spiral cable

Airbag sensor assembly

Wire harness
ON
B0105/53
(DI±527)
Short in P squib circuit
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0106/54
(DI±531)
Open in P squib circuit
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0107/51
(DI±534)
Short in P squib circuit (to ground)
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0108/52
(DI±537)
Short in P squib circuit (to B+)
Front passenger airbag assembly (squib)

Airbag sensor assembly

Wire harness
ON
B0110/43
(DI±540)
Short in side squib (RH) circuit
Side airbag assembly RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0111/44
(DI±544)
Open in side squib (RH) circuit
Side airbag assembly RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0112/41
(DI±550)
Short in side squib (RH) circuit
(to ground)
Side airbag assembly RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0113/42
(DI±550)
Short in side squib (RH) circuit
(to B+)
Side airbag assembly RH (squib)

Airbag sensor assembly

Wire harness
Blink
B0115/47
(DI±553)
Short in side squib (LH) circuit
Side airbag assembly LH (squib)

Airbag sensor assembly

Wire harness
Blink
B0116/48
(DI±557)
Open in side squib (LH) circuit
Side airbag assembly LH (squib)

Airbag sensor assembly

Wire harness
Blink

DI27Z±05
Physical address
Logical addressMeaning
Three±digit code (shown in hexadecimal) which is given to each component comprising the
AVC ± LAN
Corresponding to the function, individual symbols are specified..
Two±digit code (shown in hexadecimal) which is given to each function comprising the inner system
of the AVC ± LAN.
Physical address: 110 Multi display
Diagnosis item
Panel Switch
Error
Touch Switch
ErrorDiagnosis contentCountermeasure and
inspected parts
Error in panel switch input part is de-
tected.
(Error in switch control part, or inter-
nal communication error with switch
control part is detected.)
Error in touch switch sensor is de-
tected.
Inspect all switches on touch
switch test screen in display check
mode. If any of lines and point does
not react, replace multi±display as-
sembly.

If all switches function without
problem, observe them for a while.

Inspect all touch switches on
touch switch test screen in display
check mode. If any of lines does
not react, replace multi±display as-
sembly.

If all of vertical and horizontal
lines react normally, observe them
for a while. Logical address
21 *1
(Switch)
Replace multi±display assembly.
21
(Switch)
34
(Front passenger
monitor)
DTC
11
10
Error in power supply system for
picture circuit (abnormal voltage) is
detected. Error in Picture
Circuit 10
Decline in power output from in-
verter circuit for backlight. Backlight Error
(No current)Replace multi±display assembly.
34
(Front passenger
monitor)11
Excess power output from inverter
circuit for backlight.Replace multi±display assembly.
34
(Front passenger
monitor)12
Backlight Error
(Excess
current)
Abnormal condition of ROM is de-
tected.Replace multi±display assembly.
01
(Communication
control)21ROM Error
Abnormal condition of RAM is de-
tected.Replace multi±display assembly.
01
(Communication
control)22RAM Error
Terms
*1: Check if the operation in Touch Point Check or Touch Switch Check screen is normal. If it operates without any
problem, see how things go for a while.
Although this code is defined as Panel Switch Error, there are touch switches only on the display. If the internal com-
munication is erroneous, however, this code is stored.
± DIAGNOSTICSNAVIGATION SYSTEM
DI±813
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART

DI7S2±01
DI±874
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2001 PRIUS (RM778U)
DIAGNOSTIC TROUBLE CODE CHART
DTC No.
(See Page)Detection ItemTrouble Area
11*1
(DI±876)Room temp. sensor circuit

Room temp. sensor

Harness or connector between room temp. sensor and A/C
amplifier

A/C amplifier
12*2
(DI±879)Ambient temp. sensor circuit

Ambient temp. sensor

Harness and connector between ambient temp. sensor and
ECM

ECM

Harness and connector between ECM and A/C amplifier

A/C amplifier
13
(DI±882)Evaporator temp. sensor circuit

Evaporator temp. sensor

Harness and connector between evaporator temp. sensor
and A/C amplifier

A/C amplifier
14
(DI±885)Engine coolant temp. sensor circuit

Water temp. sensor

Harness and connector between engine coolant temp. sensor
and ECM

ECM

Harness and connector between ECM and A/C amplifier
21*3
(DI±888)Solar sensor circuit

Solar sensor

Harness or connector between room temp. sensor and A/C
amplifier

A/C amplifier
22*4
(DI±891)
All conditions below are detected for 3 sec. or more
(g) Engine speed: 500 rpm or more
(h) Ratio between engine and compressor rpm deviates 20 %
or more in comparison to normal operation
Compressor drive belt

Compressor lock sensor

Compressor

Harness and connector between compressor lock sensor and
A/C amplifier
23
(DI±894)
Open in pressure switch circuit
Abnormal refrigerant pressure
[below 196 kPa (2.0 kgf/cm
2, 28 psi) over
3,140 kPa (32.0 kgf/cm2, 455 psi)]

Pressure switch

Harness or connector between pressure switch and A/C am-
plifier

A/C amplifier
31
(DI±897)Air mix damper position sensor circuit

Air mix control servomotor

Harness or connector between air mix control servomotor
and A/C amplifier

A/C amplifier
32
(DI±900)Air inlet damper position sensor circuit

Air inlet control servomotor

Harness or connector between air inlet control servomotor
and A/C amplifier

A/C amplifier
33
(DI±903)Air outlet damper position sensor circuit

Air outlet control servomotor

Harness or connector between air outlet control servomotor
and A/C amplifier

A/C amplifier
41
(DI±906)Air mix control servomotor circuit

Air mix control servomotor

Air mix damper position sensor

Harness or connector between air mix control servomotor
and A/C amplifier

A/C amplifier