1997 TOYOTA SUPRA ESP
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- DIAGNOSTICSENGINE (2JZ-GTE)
DI-157
385 Author: Date:
1997 SUPRA (RM502U)
(b) TOYOTA Enhanced Signals
TOYOTA hand-held
tester displayMeasurement ItemNormal Condition*
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 rpm
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 0 g/r
INJECTORFuel injection time for cylinder No.1Idling: 1.3 ~ 2.7 ms
IAC STEP POSIntake Air Control Valve Step Position Opening position step motor type IAC valveIdling: 10 ~ 50 step
STARTER SIGStarter SignalCranking: ON
CTP SWClosed Throttle Position Switch SignalThrottle fully closed: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SWPark / Neutral Position Switch SignalP or N position: ON
ELECTRICAL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut after between 20 sec. at light loadFuel cut operating: ON
CYL #1
CYL #2
CYL #3
CYL #4
CYL #5
CYL #6
Abnormal revolution variation for each cylinder0%
IGNITIONTotal number of ignitions for every 1,000 revolutions0 ~ 3,0000
EGRT GASEGR Gas Temperature Sensor Value
EGR not operating:
Temperature between intake
air temp. and engine coolant
temp.
FUEL PRES UP VSVFuel Pressure Up VSV SignalHigh temp. restarting: ON
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
A/C MAG CLUTCHA/C Magnetic Clutch SignalA/C ON: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: ON
TURBO BOOST VSVWaste gate valve VSV signalVSV operating: ON
INTK AIR CTL VSVIntake Air Control Valve VSV SignalVSV operating: OFF
EXH GAS CTL VSVExhaust Gas Control Valve VSV SignalVSV operating: OFF
EXH BYPASS VSVExhaust Bypass Valve VSV SignalVSV operating: OFF
TOTAL FT B1Total Fuel Trim Bank 1: Average value for fuel trim system of bank 1Idling: 0.8 ~ 1.2
TOTAL FT B2Total Fuel Trim Bank 2: Average value for fuel trim system of bank 2Idling: 0.8 ~ 1.2
02 LR B1, S1Oxygen Sensor Lean Rich Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from lean to rich.Idling after warmed up:
0 ~ 1,000 m sec.
02 RL B1, S1Oxygen Sensor Rich Lean Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from rich to lean.Idling after warmed up:
0 ~ 1,000 m sec.
*: If no conditions are specifically stated for ºIdlingº, it meas the shift lever is at N or P position, the A/C switch
is OFF and all accessory switches are OFF.
Page 573 of 1807
DI4SI-01
DI-158
- DIAGNOSTICSENGINE (2JZ-GTE)
386 Author: Date:
1997 SUPRA (RM502U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in check mode, check the circuit for that code listed
in the table below. For details of each code, turn to the page reffered to under the ºSee pageº for the respec-
tive ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P0100
(DI-170)Mass Air Flow Circuit
MalfunctionOpen or short in mass air flow meter circuit
Mass air flow meter
ECM
P0101
(DI-174)Mass Air Flow Circuit
Range / Performance ProblemMass air flow meter
P0110
(DI-175)Intake Air Temp. Circuit
MalfunctionOpen or short in intake air temp. sensor circuit
Intake air temp. sensor
ECM
P0115
(DI-179)Engine Coolant Temp. Circuit
MalfunctionOpen or short in engine coolant temp. sensor circuit
Engine coolant temp. sensor
ECM
P0116
(DI-183)Engine Coolant Temp. Circuit
Range / Performance ProblemEngine coolant temp. sensor
Cooling system
P0120
(DI-184)Throttle / Pedal Position
Sensor / Switch ºAº Circuit
MalfunctionOpen or short in throttle position sensor circuit
Throttle position sensor
ECM
P0121
(DI-189)Throttle /Pedal Position
Sensor / Switch ºAº Circuit
Range / Peformance Problem
Throttle position sensor
P0125
(DI-190)Insufficient Coolant Temp. for
Closed Loop Fuel ControlOpen or short in heated oxygen sensor circuit
Heated oxygen sensor
P130
(DI-193)Heated Oxygen Sendor Circuit
Malfunction
(Bank 1 Sensor 1)Heated oxygen sensor
Fuel trim malfunction
P0133
(DI-196)Heated Oxygen Sensor Circuit
Slow Response
(Bank 1 Sensor 1)
Heated oxygen sensor
*: ... MIL lights up
Page 611 of 1807
DI-196
- DIAGNOSTICSENGINE (2JZ-GTE)
424 Author: Date:
1997 SUPRA (RM502U)
DTC P0133 Heated Oxygen Sensor Circuit Slow
Response (Bank 1 Sensor 1)
CIRCUIT DESCRIPTION
Refer to ºInsufficient Coolant Temp. for Closed Loop Fuel Controlº on page DI-190.
DTC No.DTC Detecting ConditionTrouble Area
P0133
Response time for the heated oxygen sensor voltage output to
change from rich to lean, or from lean to rich, is 1 sec. or more
during idling after the engine is warmed up
(2trip detection logic)
Heated oxygen sensor
HINT:
Bank 1 refers to the bank that includes cylinder No.1.
Sensor 1 refers to the sensor closer to the engine body.
INSPECTION PROCEDURE
1 Are there any other codes (besides DTC P0133) being output?
YES Go to relevant DTC chart.
NO
Replace heated oxygen sensor.
DI4SV-01
Page 647 of 1807
S05422
To Turbo
Charcoal
Canister
Fuel Tank
ECMIntake Manifold VSV for
EVAP
S01079
Battery
EB
W-B
BB-W
R/B No.2
EFI No.1
EFI Main Relay
2 2A
2
2 2
2
35
1 2
B-R
B-YB-REA22VSV for EVAP
1274
B
ECM
EVAP
E01
B+
GR24
A
M-REL
V
EA18 1 DI-234
- DIAGNOSTICSENGINE (2JZ-GTE)
462 Author: Date:
1997 SUPRA (RM502U)
DTC P0441 Evaporative Emission Control System
Incorrect Purge Flow
CIRCUIT DESCRIPTION
To reduce HC emissions, evaporated fuel from the fuel tank is routed through the charcoal canister to the
intake manifold for combustion in the cylinders.
The ECM changes the duty signal to the VSV for EVAP so that the intake quantity of HC emissions is ap-
propriate for the driving conditions (engine load, engine speed, etc.) after the engine is warme up.
DTC No.DTC Detecting ConditionTrouble Area
P0441
The proper response to the computer command does not oc-
cur
(2 trip detection logic)
Open or short in VSV circuit for EVAP
VSV for EVAP
Vacuum hose blocked or disconnected
ECM
Charcoal canister
WIRING DIAGRAM
DI4T6-01
Page 662 of 1807
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-247
475 Author: Date:
1997 SUPRA (RM502U)
DTC P1100 Barometric Pressure Sensor Circuit
Malfunction
CIRCUIT DESCRIPTION
The BARO sensor is built into the ECM. This is a semiconductor pressure sensor with properties which cause
its electrical resistance to change when stress is applied to the sensor's crystal (silicon) (piezoelectric effect).
This sensor is used to detect the atmospheric (absolute) pressure and outputs corresponding electrical sig-
nals. Fluctuations in the air pressure cause changes in the intake air density, which can cause deviations
in the air-fuel ratio. The signals from BARO sensor are used to make corrections for these fluctuations. If
the ECM detects DTC P1100, the fail safe function operates and the atmospheric pressure is set at a
constant 760 mmHg.
DTC No.DTC Detecting ConditionTrouble Area
P1100Open or short detected in barometric pressure sensor circuit
(2 trip detection logic)ECM
INSPECTION PROCEDURE
1 Are there any other codes (besides DTC P1100) being output?
YES Go to relevant DTC chart.
NO
Replace ECM.
DI4TA-01
Page 738 of 1807
DI4V7-01
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-447
675 Author: Date:
1997 SUPRA (RM502U)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ºSee pageº for the respective ºDTC No.º in the DTC chart.
HINT:
Using SST 09843-18020, connect the terminals Tc and E1, and remove the short pin.
If any abnormality is not found when inspect each inspection parts, inspect the ECU.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI-453)Open circuit in ABS solenoid relay circuitABS solenoid relay
Open or short in ABS solenoid relay circuit
12
(DI-453)Short circuit in ABS solenoid relay circuitABS solenoid relay
B+ short in ABS solenoid relay circuit
13*2
(DI-460)Open circuit in ABS motor relay circuitABS motor relay
Open or short in ABS motor relay circuit
14
(DI-460)Short circuit in ABS motor relay circuitABS motor relay
B+ short in ABS motor relay circuit
21
(DI-466)Open or short circuit in 2-position solenoid circuit for right front
wheelABS actuator
Open or short in SFRH or SFRR circuit
22
(DI-466)Open or short circuit in 2-position solenoid circuit for left front
wheelABS actuator
Open or short in SFLH or SFLR circuit
23
(DI-466)Open or short circuit in 2-position solenoid circuit for right rear
wheelABS actuator
Open or short in SRH (SRRH) or SRR (SRRR) circuit
24*1
(DI-466)
Open or short circuit in 2-position solenoid circuit for left rear
wheelABS actuator
Open or short in SRLH or SRLR circuit
31*2
(DI-469)Right front wheel speed sensor signal malfunction
32*2
(DI-469)Left front wheel speed sensor signal malfunctionRight front, left front, right rear and left rear speed sensor
O htihd iit33*2
(DI-469)Right rear wheel speed sensor signal malfunction
Open or short in each speed sensor circuit
Speed sensor rotor
34*2
(DI-469)Left rear wheel speed sensor signal malfunction
41
(DI-475)Low battery positive voltage
Battery
IC regulator
Open or short in power source circuit
43*1
(DI-479)
Malfunction in deceleration sensor
(constant output)Deceleration sensor
Wire harness for deceleration sensor system
44*1
(DI-480)Open or short in deceleration sensor circuitDeceleration sensor
Open or short in deceleration sensor circuit
45*1
(DI-479)Malfunction in deceleration sensorDeceleration sensor
Wire harness for deceleration sensor system
49
(DI-482)Open circuit in stop light switch circuitOpen in stop light circuit
51*2
(DI-484)
Pump motor is locked
Open in pump motor groundABS pump motor
Always
ON
(DI-485)Malfunction in ECU
IG power source circuitBattery
IC regulator
Open or short in power source circuit
Page 794 of 1807
DI4VS-01
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI-503
731 Author: Date:
1997 SUPRA (RM502U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Using SST 09843-18020, connect the terminals Tc and E
1.
If a malfunction code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ºSee pageº for the respective ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI-509)Throttle control relay circuit open
Throttle control relay
TRAC fuse
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
12
(DI-509)Throttle control relay circuit short
Throttle control relay
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
21
(DI-513)Sub-throttle valve motor circuit open or short
Sub-throttle valve motor
Wire harness and connector (sub-throttle valve motor and
E01 circuit)
Throttle control ECU
22
(DI-513)Sub-throttle valve motor malfunction
Sub-throttle valve motor
Sub-throttle valve
Sub-throttle position sensor
Wire harness and connector (E1 circuit)
Throttle control ECU
23
(DI-516)Throttle body malfunction
Sub-throttle valve
Sub-throttle position sensor
Throttle control ECU
24
(DI-519)Sub-throttle position sensor leakage/sub-throttle valve stuck
Sub-throttle valve
Sub-throttle position sensor
Wire harness and connector (E1 circuit)
Throttle control ECU
31
(DI-522)Throttle position sensor signal malfunction
Throttle position sensor
Wire harness and connector (throttle position senor and E1
circuit)
Throttle control ECU
32
(DI-526)Sub-throttle position sensor signal malfunction
Sub-throttle position sensor
Sub-throttle valve motor
Sub-throttle valve
Wire harness and connector (sub-throttle position senor and
E1 circuit)
Throttle control ECU
41
(DI-530)Engine revolution signal open or short
Wire harness and connector (NE circuit)
ECM
Throttle control ECU
42
(DI-532)ECM malfunction
Wire harness and connector (EFIF circuit)
ECM
Throttle control ECU
43
(DI-534)ECM communication circuit malfunction
Wire harness and connector (EFI+ and EFI- circuit)
ECM
Throttle control ECU
51
(DI-535)Power source voltage down
(sub-throttle valve in a bad condition)Wire harness and connector (+B and E01 circuit)
Throttle control ECU
Page 962 of 1807
DI4XP-01
- DIAGNOSTICSCRUISE CONTROL SYSTEM
DI-671
899 Author: Date:
1997 SUPRA (RM502U)
PROBLEM SYMPTOMS TABLE
SymptomSuspect AreaSee page
Cruise control system does not set.
Cruise control system does not operate.
Input signal check No.4: OK
1. ECU Power Source Circuit
2. Wire Harness
3. Main Switch Circuit
4. Control Switch Circuit
5. Stop Light Switch Circuit
6. PNP Switch or Clutch Switch Circuit
7. Actuator Control Cable
8. Actuator Motor Circuit
9. Cruise Control ECU
Input signal check No.4: NG
1. Vehicle Speed Sensor Circuit
2. Cruise Control ECU
DI-699
DI-704
DI-682
DI-687
DI-694,
DI-697
DI-710
DI-673
IN-28
DI-679
IIN-28
Indicator light does not light up.
1. Wire Harness
2. CRUISE MAIN Indicator Light Circuit
3. Cruise Control ECU
DI-706
IIN-28
Vehicle speed drop when the cruise control switch turned to SET.
1. Actuator Control Cable
2. ECU Power Source Circuit
3. Idle Signal Circuit
4. Actuator Motor Circuit
5. Cruise Control ECUDI-710
DI-699
DI-685
DI-673
IN-28
Set speed deviates on high or low side.
Input signal check No.4: OK
1. Vehicle Speed Sensor Circuit
2. Actuator Control Cable
3. ECU Power Source Circuit
4. Actuator Motor Circuit
5. Cruise Control ECU
Input signal check No.4: NG
1. Cruise Control ECU
DI-679
DI-710
DI-699
DI-673
IN-28
IN-28
Vehicle speed fluctuates when cruise control switch turn to SET.
1. Vehicle Speed Sensor Circuit
2. Actuator Control Cable
3. Idle Signal Circuit
4. ECT Communication Circuit
5. Actuator Motor Circuit
6. Cruise Control ECUDI-679
DI-710
DI-685
DI-690
DI-673
IN-28
Acceleration response is sluggish when cruise control switch turn
to ºACCELº or ºRESUMEº.
Input signal check No.4: OK
1. Actuator Control Cable
2. Vehicle Speed Sensor Circuit
3. Actuator Motor Circuit
4. Cruise Control ECU
Input signal check No.4: NG
1. Control Switch Circuit
2. Cruise Control ECU
DI-673
DI-679
DI-710
IN-28
DI-682
IN-28
Set speed does not cancel when brake pedal depressed.
Input signal check No.3: OK
1. Cruise Control ECU
Input signal check No.3: NG
1. Stop Light Switch Circuit
2. Cruise Control ECU
IN-28
DI-687
IIN-28
Cruise control does not cancel when transmission is shifted to
except D position. (A/T)
Input signal check No.3: OK
1. Cruise Control ECU
Input signal check No.3: NG
1. PNP Switch Circuit
2. Cruise Control ECU
IIN-28
DI-694
IN-28