Toyota Corolla (2004+). Manual - part 43

 

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Toyota Corolla (2004+). Manual - part 43

 

 

05-609
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
05604-04
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
Symptom
Suspect Area
See page
3.
Radio receiver assy power source circuit
Pressing power switch does not start system.
05-610
4.
Radio receiver assy
Turning on light switch does not light up night time illumination of
1.
Radio receiver assy ILL terminal circuit
05-612
radio receiver.
2.
Radio receiver assy
1.
Speaker circuit
No sound is heard from speaker in all modes.
2.
Radio receiver assy power source circuit
05-614
3.
Radio receiver assy
1.
Speaker circuit
Sound quality is bad in all modes. (Volume is too low)
2.
Radio receiver assy power source circuit
05-617
3.
Radio receiver assy
1.
Antenna circuit
Radio broadcast cannot be received. (Bad reception)
05-619
2.
Radio receiver assy
1.
Cassette tape
Cassette tape cannot be inserted or played.
2.
Radio receiver assy power source circuit
05-621
3.
Radio receiver assy
1.
Cassette tape
Cassette tape cannot be ejected.
2.
Radio receiver assy power source circuit
05-623
3.
Radio receiver assy
1.
Cassette tape
Sound quality is bad only when playing tape.
05-617
2.
Radio receiver assy
Tape is tangled due to incorrect tape speed or auto-reverse mal-
1.
Cassette tape
05-626
function.
2.
Radio receiver assy
1.
CD
CD cannot be inserted or is ejected right after insertion.
2.
Radio receiver assy power source circuit
05-627
3.
Radio receiver assy
1.
CD
Although system is powered, CD cannot be played.
2.
Radio receiver assy power source circuit
05-629
3.
Radio receiver assy
1.
CD
CD cannot be taken out.
2.
Radio receiver assy power source circuit
05-632
3.
Radio receiver assy
Sound quality is bad only when CD is played.(Volume is too low)
1.
CD
05-634
1.
CD
CD sound skips.
05-635
2.
Radio installation
Noise occurs.
-
05-637
05-626
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
0560E-02
TAPE IS TANGLED DUE TO INCORRECT TAPE SPEED OR
AUTO-REVERSE MALFUNCTION
INSPECTION PROCEDURE
1
CHECK FOR ANY FOREIGN OBJECT
(a) Check for any foreign object.
(1)
Check that no foreign material and troubles are detected in the radio receiver assembly cassette
tape player.
Standard: No foreign material and trouble detected.
NG REMOVE FOREIGN OBJECT
OK
2
REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK(BELOW 90 MIN.)
(a) Replace the cassette tape with another and recheck.
(1)
Replace the faulty cassette tape with the normal one (90 min. or less) to see if the same trouble
occurs again.
Standard: malfunction disappear.
OK CASSETTE TAPE FAULTY
NG
3
CLEAN HEAD AND CHECK OPERATION
(a) Head cleaning
(1)
Raise the cassette door with your finger. Next, using
Capstan
a pencil or similar object, push in the guide.
Head
(2)
Using a cleaning pen or cotton applicator soaked in
cleaner, clean the head surface, pinch rollers and
capstans.
(3)
Check that the same trouble occurs again.
OK HEAD DIRTY
Pinch Roller
N17398
NG
CHECK AND REPLACE RADIO RECEIVER ASSY
05-608
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
057P0-02
TERMINALS OF ECU
1.
RADIO RECEIVER ASSY
R3
R4
I32243
Symbols (Terminals No.)
Wirin Color
Condition
STD Voltage (V)
A waveform synchro-
R3-1 R3-7
LG BR
Audio system is sounding
nized with sounds is
(FR+ GND)
output
A waveform synchro-
R3-2 R3-7
P BR
Audio system is sounding
nized with sounds is
(FL+ GND)
output
R3-3 R3-7
Ignition switch OFF
Below 1 V
(ACC GND)
GR BR
Ignition switch ON
10 - 14 V
R3-4 R3-7
L-W BR
Constant
10 - 14 V
(+B GND)
A waveform synchro-
R3-5 R3-7
L BR
Audio system is sounding
nized with sounds is
(FR- GND)
output
A waveform synchro-
R3-6 R3-7
V BR
Audio system is sounding
nized with sounds is
(FL- GND)
output
R3-7 Body ground
BR Body
Constant
Below 1 V
(GND Body ground)
ground
R3-8 -
B -
See ”Service check mode”
-
(ANT+ -)
R3-10 R3-7
G BR
Light control switch TAIL or HEAD
10 - 14 V
(ILL+ GND)
A waveform synchro-
R4-1 R3-7
R BR
Audio system is sounding
nized with sounds is
(RR+ GND)
output
A waveform synchro-
R4-2 R3-7
B BR
Audio system is sounding
nized with sounds is
(RL+ GND)
output
A waveform synchro-
R4-3 R3-7
W BR
Audio system is sounding
nized with sounds is
(RR- GND)
output
R4-5 R3-7
W-B BR
Light control switch HI or FLASH
10 - 14 V
(ILL- GND)
A waveform synchro-
R4-6 R3-7
Y BR
Audio system is sounding
nized with sounds is
(RL- GND)
output
05-596
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
055ZY-05
HOW TO PROCEED WITH TROUBLESHOOTING
1
VEHICLE BROUGHT TO WORKSHOP
2
CUSTOMER PROBLEM ANALYSIS (SEE PAGE 05-598)
3
CHECK AND CLEAR DTC (SEE PAGE 05-599)
4
PROBLEM SYMPTOM CONFIRMATION
SYMPTOM OCCURS (GO TO STEP 6)
SYMPTOM DOES NOT OCCUR (GO TO
STEP 5)
5
SYMPTOM SIMULATION (SEE PAGE 01-20)
6
DTC CHECK (SEE PAGE 05-599)
MALFUNCTION CODE (GO TO STEP 7)
NORMAL CODE (GO TO STEP 8)
7
DTC CHART (SEE PAGE 05-605)
GO TO STEP 9
8
PROBLEM SYMPTOMS TABLE (SEE PAGE 05-609)
9
CIRCUIT INSPECTION (SEE PAGE 05-610 - 05-637)
05-597
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
10
CONFIRMATION TEST
END
05-617
DIAGNOSTICS
-
AUDIO SYSTEM (April, 2003)
057P4-02
SOUND QUALITY IS BAD IN ALL MODES (VOLUME IS TOO LOW)
WIRING DIAGRAM
See page 05-614
INSPECTION PROCEDURE
1
ADJUST SOUND QUALITY
(a) Adjust the sound quality.
(1)
Operate the radio receiver assy to adjust the sound quality.
Standard: malfunction disappear.
OK BAD SOUND QUALITY
NG
2
COMPARE IT WITH ANOTHER CAR OF SAME MODEL
(a) Compare it with another vehicle of the same model.
(1)
Compare with the vehicle of the same type which does not have a trouble to see if there is any
difference in the condition of trouble occurrence.
Standard: No difference found.
OK SETTING
NG
3
CHECK HARNESS AND CONNECTOR(BETWEEN RADIO RECEIVER ASSY AND
SPEAKER)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
4
INSPECT FRONT NO.1 SPEAKER ASSY
(a) Preparation for Check
(1)
Disconnect the connector of the speaker.
(b) Resistance Check
(1)
Check the resistance between the terminals of the speaker.
NOTICE:
The speaker should not be removed for checking.
Standard value: 4
W
NG REPLACE FRONT NO.1 SPEAKER ASSY
OK
05-618
DIAGNOSTICS
- AUDIO SYSTEM (April, 2003)
5
INSPECT FRONT NO.2 SPEAKER ASSY
(a) Check that malfunction disappear when a known good speaker is installed.
Standard: malfunction disappear.
HINT:
Connect the all connectors of speakers.
NG REPLACE FRONT NO.2 SPEAKER ASSY
OK
6
INSPECT REAR SPEAKER ASSY
(a) Preparation for Check
(1)
Disconnect the connector of the speaker.
(b) Resistance Check
(1)
Check the resistance between the terminals of the speaker.
NOTICE:
The speaker should not be removed for checking.
Standard value: 6
W
NG REPLACE REAR SPEAKER ASSY
OK
7
INSPECT RADIO RECEIVER ASSY(+B, ACC, GND)
(a) Check that the continuity between terminals at each
+B
ACC
condition, as shown in the chart.
Standard:
Tester connection
Condition
Specified condition
GND - Body ground
Constant
Continuity
(b) Check that the voltage between terminals at each condi-
tion, as shown in the chart.
Standard:
GND
I32244
Tester connection
Condition
Specified condition
+B - GND
Constant
10 - 14 V
ACC - GND
Ignition switch ACC or ON
10 - 14 V
OK CHECK AND REPLACE RADIO RECEIVER
ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
05-384
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05DU4-01
DTC
P0724
BRAKE SWITCH ”B” CIRCUIT HIGH
CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling while driving in lock-up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ECM. Then the ECM cancels the op-
eration of the lock-up clutch while braking is in progress.
DTC No.
DTC Detecting Condition
Trouble Area
F Short in stop light switch signal circuit
The stop light switch does not turn off even once the vehicle is
P0724
F Stop light switch
driven (2-trip detection logic).
F ECM
MONITOR DESCRIPTION
The circuit prevents the engine from stopping when the vehicle is stopped by sudden braking when the
torque converter clutch is in the ”lock-up” mode. The ECM receives the signal from the stop light switch at
the time brake pedal is depressed. Then, the ECM sends the signal to the lock-up solenoid valve not to be
in lock-up condition. When the stop light switch remains ON during ”stop and go” driving, the ECM interprets
this as a fault in the stop light switch and the MIL comes on. The vehicle must stop and go (3 km/h (2 mph)
to 30 km/h (19 mph)) ten times for two driving cycles in order to detect malfunction.
MONITOR STRATEGY
Stop light switch/Range check
Related DTCs
P0724
Stop light switch/Rationality
Required sensors/Components
Stop light switch
Frequency of operation
Continuous
Duration
Go and stop 10 times or more
MIL operation
2 driving cycles
Sequence of operation
None
TYPICAL ENABLING CONDITION
Specification
Item
Minimum
Maximum
The monitor will run whenever the follow-
See page 05-369
ing DTCs are not present.
Number of ”Go” and ”Stop” defined as fol-
10 times
lows
”Go”
30 km/h (19 mph) or more
-
”Stop”
-
Less than 3 km/h (2 mph)
TYPICAL MALFUNCTION THRESHOLDS
Detection criteria
Threshold
Switch status
ON stuck
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
05-385
TRANSAXLE [ECT] (April, 2003)
WIRING DIAGRAM
S9
Instrument Panel J/B
RH J/B
ECM
Stop Light SW
5
1
13
11
19
G-W
G-W
G-W
IC
IL
3C
3C
E5
STP
2
1
STOP
1
14
R-W
W
IC
IB
Engine Room J/B
1
ALT
1
FL MAIN
B
1A
1C
1
2
Battery
G23392
INSPECTION PROCEDURE
1
INSPECT STOP LAMP SWITCH ASSY (See page 65-7)
NG REPLACE STOP LAMP SWITCH ASSY
OK
2
CHECK HARNESS AND CONNECTOR(STOP LAMP SWITCH ASSY - ECM)
(a) Install the stop lamp switch assy.
E3
E4
E5
E6
(b) Disconnect the ECM connector.
(c)
Measure the voltage according to the value(s) in the table
below when the brake pedal is depressed and released.
Standard:
Condition
Tester Connection
Specified Condition
Brake pedal is depressed
E5 - 19 (STP) -
10 to 14 V
ECM:
Brake pedal is released
Body ground
Below 1 V
STP C96192
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (See page 01-30)
OK
REPLACE ECM (See page 10-11)
05-354
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05DTS-01
CHECK MODE PROCEDURE
1.
DTC CHECK (CHECK MODE)
HINT:
Hand-held tester only:
Compared to the normal mode, the check mode has more sens-
ing ability to detect malfunctions. Furthermore, the same diag-
nostic items which are detected in the normal mode can also be
detected in the check mode.
Hand-Held Tester
(a) Procedure for Check Mode using the hand-held tester.
(1)
Check the initial conditions.
F
Battery positive voltage 11 V or more
F
Throttle valve fully closed
F
Transaxle in the P or N position
F
A/C switch is off
(2)
Turn the ignition switch off.
(3)
Connect the hand-held tester to the DLC3.
DLC3
G23391
(4)
Turn the ignition switch to the ON position.
(5)
Switch the hand-held tester from the normal mode
to the check mode (Check that the MIL flashes).
NOTICE:
0.13 sec.
0.13 sec.
If the hand-held tester switches the ECM from the normal
ON
mode to the check mode or vice-versa, or if the ignition
switch is turned from the ON position to the ACC or LOCK
position during the check mode, the DTC and freeze frame
OFF
data will be erased.
BR3904
(6)
Start the engine (MIL goes off after the engine
starts).
(7)
Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch in the ON position until you have
checked the DTCs, etc.
(8)
After simulating malfunction conditions, use the
hand-held tester diagnosis selector to check the
DTCs and freeze frame data, etc.
HINT:
Be sure not to turn the ignition switch off, as turning it off
switches the diagnosis system from the check mode to the nor-
mal mode, which erases all the DTCs, etc.
(9)
After checking the DTC, inspect the applicable cir-
cuit.
DIAGNOSTICS
-
ELECTRONIC CONTROLLED AUTOMATIC
05-355
TRANSAXLE [ECT] (April, 2003)
2.
DTC CLEAR
(a) When using the OBD II scan tool or hand-held tester:
Clearing the DTCs.
(1)
Connect the OBD II scan tool or hand-held tester
to the DLC3.
(2)
Turn the ignition switch to the ON position.
(3)
When operating the OBD II scan tool (complying
with SAE J1978) or hand-held tester to erase the
codes, the DTCs and freeze frame data will be
erased. (See the OBD II scan tool’s manual book
for operating manuals.)
(b) When not using the OBD II scan tool or hand-held tester:
Clearing the DTCs.
(1)
Disconnecting the battery terminal or remove the
EFI and ETCS fuses from the engine room J/B for
60 seconds or more.
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
05-349
TRANSAXLE [ECT] (April, 2003)
0527I-17
CUSTOMER PROBLEM ANALYSIS CHECK
Transaxle Control
Inspector’s
System Check Sheet
:
Name
VIN
Customer’s Name
Production Date
/
/
Licence No.
Date Vehicle
km
/
/
Odometer Reading
Brought In
mile
Date Problem
/
/
Occurred
How Often Does
F Continuous
F Intermittent (
times a day)
Problem Occur?
F Vehicle does not move ( F Any position F Particular position)
F No up-shift
( F 1st 2nd F 2nd 3rd F 3rd O/D )
F No down-shift
( F O/D 3rd F 3rd 2nd F 2nd 1st )
F Lock-up malfunction
Symptoms
F Shift point too high or too low
F Harsh engagement ( F N D F Lock-up F Any drive position)
F Slip or shudder
F No kick-down
F Others
Check Item
MIL
Normal
Remains ON
1st Time
Normal code
Malfunction code (DTC
)
DTC Check
2nd Time
Normal code
Malfunction code (DTC
)
05-364
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05DTY-01
DATA LIST/ACTIVE TEST
1.
DATA LIST
HINT:
According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of
troubleshooting is one method to shorten labor time.
(a)
Warm up the engine.
(b)
Turn the ignition switch off.
(c)
Connect the OBD II scan tool or hand-held tester to the DLC3.
(d)
Turn the ignition switch to the ON position.
(e)
According to the display on tester, read the ”DATA LIST”.
Measurement Item/
Item
Normal Condition
Diagnostic Note
Display (Range)
Stop light SW Status/
F Brake Pedal is depressed: ON
STOP LIGHT SW
-
ON or OFF
F Brake Pedal is released: OFF
Shift Lever Position is;
F L: 1st
Actual Gear Position/
F 2: 1st or 2nd
SHIFT
-
1st, 2nd, 3rd, 4th (O/D)
F D(O/D OFF): 1st, 2nd or 3rd
F D(O/D ON): 1st, 2nd, 3rd or 4th
(O/D)
Lock Up Solenoid Status/
F Lock Up: ON
LOCK UP SOL
-
ON or OFF
F Except Lock Up: OFF
Shift lever position is;
PNP SW Status/
PNP SW [NSW]
P or N: ON
ON or OFF
Except P or N: OFF
The shift lever position and these
Shift lever position is;
values are different, there are fail-
PNP SW Status/
LOW
L: ON
ures of the PNP switch or shift
ON or OFF
Except L: OFF
cable adjustment.
Shift lever position is;
HINT:
PNP SW Status/
2ND
2: ON
When the failure still occurs even
ON or OFF
Except 2: OFF
after adjusting these parts,
Shift lever position is;
See page 05-379.
PNP SW Status/
REVERSE
R: ON
ON or OFF
Except R: OFF
F IG SW ON: ON
O/D SW Status/
OVERDRV CUT SW1
F O/D SW Push: OFF
-
ON or OFF
F O/D SW Push: ON
F O/D Cancel Signal input: ON
CCS O/D Cancel Signal/
OVERDRV CUT SW2 *
F O/D Cancel Signal not input:
-
ON or OFF
OFF
Shift Solenoid SLT Status/
SOLENOID (SLT)
IG SW ON: ON
-
ON or OFF
*: w/ Cruise control
DIAGNOSTICS
-
ELECTRONIC CONTROLLED AUTOMATIC
05-365
TRANSAXLE [ECT] (April, 2003)
2.
ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester allows the relay, VSV, actuator and so on to oper-
ate without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one method
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c)
Connect the hand-held tester to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) According to the display on tester, perform the ”ACTIVE TEST”.
Item
Test Details
Diagnostic Note
[Test Details]
Operate the shift solenoid valve and set the each shift position by your-
self.
[Vehicle Condition]
Possible to check the operation of
SHIFT
Less than 50 km/h (31 mph)
the shift solenoid valves.
[Others]
F Press button: Shift up
F Press button: Shift down
[Test Details]
Control the shift solenoid SL to set the ATM to the lock-up condition.
Possible to check the SL opera-
LOCK UP
[Vehicle Condition]
tion.
Vehicle Speed: 58 km/h (36 mph) or more
[Test Details]
Operate the shift solenoid SLT and raise the line pressure.
[Vehicle Condition]
F Vehicle Stopped.
LINE PRESS UP *
-
F IDL: ON
[Others]
OFF: Line pressure up.
ON: No action (normal operation)
*: ”LINE PRESS UP” in the ACTIVE TEST is performed to check the line pressure changes by connecting
the SST to the automatic transaxle, which is used in the HYDRAULIC TEST as well.
HINT:
The pressure values in ACTIVE TEST and HYDRAULIC TEST are different from each other.
05-366
DIAGNOSTICS
- ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (April, 2003)
05DTZ-01
DEFINITION OF TERMS
Term
Definition
Monitor description
Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details).
Related DTCs
Diagnostic code
Preconditions that allow the ECM to detect malfunctions.
Typical enabling condition
With all preconditions satisfied, the ECM sets the DTC when the monitored value(s) exceeds the malfunction
threshold(s).
The priority order that is applied to monitoring, if multiple sensors and components are used to detect the malfunc-
tion.
Sequence of operation
While another sensor is being monitored, the next sensor or component will not be monitored until the previous
monitoring has concluded.
Required sensor/compo-
The sensors and components that are used by the ECM to detect malfunctions.
nents
The number of times that the ECM checks for malfunctions per driving cycle.
”Once per driving cycle” means that the ECM detects malfunction only one time during a single driving cycle.
Frequency of operation
”Continuous” means that the ECM detects malfunction every time when enabling condition is met during a single
driving cycle.
The minimum time that the ECM must sense a continuous deviation in the monitored value(s) before setting a
Duration
DTC. This timing begins after the ”typical enabling conditions” are met.
Malfunction thresholds
Beyond this value, the ECM will conclude that there is a malfunction and set a DTC.
MIL illumination timing after a defect is detected.
”Immediately” means that the ECM illuminates MIL the instant the ECM determines that there is a malfunction.
MIL operation
”2 driving cycle” means that the ECM illuminates MIL if the same malfunction is detected again in the 2 nd driving
cycle.

 

 

 

 

 

 

 

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