
CO–42AZ-FE COOLING  –  COOLING FAN SYSTEM
CO
ON-VEHICLE INSPECTION
HINT:
It is normal for the cooling fan to sometimes rotate when the 
ignition switch is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION AT LOW 
TEMPERATURES (Below 94
C (201F))
(a) Turn the ignition switch ON with the A/C switch OFF.
(b) Check that the cooling fan stops.
If it does not, check the cooling fan relays and 
engine coolant temperature sensor, and then check 
for disconnection of the connector or a wire break 
between the cooling fan relay and engine coolant 
temperature sensor.
(c) Disconnect the engine coolant temperature sensor 
connector.
(d) Check that the cooling fan rotates.
If it does not, check the fuses, cooling fan relays, 
ECM and cooling fan, and then check for an open 
circuit between the cooling fan relay and engine 
coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor 
connector.
2. CHECK COOLING FAN OPERATION AT HIGH 
TEMPERATURES (Above 96
C (205F))
(a) Start the engine, and then raise the coolant 
temperature to above 96
C (205F).
HINT:
Coolant temperature is the value detected by the 
engine coolant temperature sensor on the cylinder 
head.
(b) Check that the A/C switch is OFF.
A127842
A112176
A127843 

CH–42AZ-FE CHARGING  –  CHARGING SYSTEM
CH
ON-VEHICLE INSPECTION
1. CHECK BATTERY CONDITION
NOTICE:
If the battery is weak or if the engine is difficult to 
start, perform the following procedures.
(a) Check the battery for damage and deformation. If 
severe damage, deformation or leakage is found, 
replace the battery.
(b) Check the electrolyte quantity of each cell.
(1) For maintenance-free batteries:
• If the electrolyte quantity is below the lower 
line, replace the battery.
• If the electrolyte quantity is above the lower 
line, check the battery voltage when 
cranking the engine. If the voltage is less 
than 9.6 V, recharge or replace the battery.
HINT:
Before checking the battery voltage, turn off 
all the electrical systems (headlights, blower 
motor, rear defogger, etc.).
(2) For non-maintenance-free batteries:
• If the electrolyte quantity is below the lower 
line, add distilled water to each cell. Then, 
recharge the battery and check the 
electrolyte's specific gravity. 
Standard specific gravity:
1.25 to 1.29 at 20
C (68F)
If the electrolyte quantity is above the lower 
line, check the battery voltage when 
cranking the engine. If the voltage is less 
than 9.6 V, recharge or replace the battery.
HINT:
Before checking the battery voltage, turn off 
all the electrical systems (headlights, blower 
motor, rear defogger, etc.).
2. INSPECT BATTERY TERMINAL AND FUSE
(a) Visually check the battery terminals.
(1) Check that the battery terminals are not loose 
or corroded.
(b) Measure the resistance of the H-fuses and fuses.
Standard resistance:
Below 1 
If the results are not as specified, replace the fuses 
as necessary.
A116909
A116907 

2AZ-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEMES–41
ES
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal 
mode to check mode or vice versa, all DTCs and freeze 
frame data recorded in normal mode are erased. Before 
changing modes, always check and make a note of any 
DTCs and freeze frame data.
HINT:
• DTCs which are stored in the ECM can be displayed on 
the intelligent tester. The intelligent tester can display 
current and pending DTCs.
• Some DTCs are not set if the ECM does not detect the 
same malfunction again during a second consecutive 
driving cycle. However, such malfunctions, detected on 
only one occasion, are stored as pending DTCs.
1. CHECK DTC (Using intelligent tester)
(a) Connect the intelligent tester to the DLC3. 
(b) Turn the ignition switch ON.
(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS / 
ENHANCED OBD II / DTC INFO / CURRENT 
CODES or PENDING CODES.
(e) Check the DTC(s) and freeze frame data, and then 
write them down.
(f) Check the details of the DTC(s) (see page ES-51).
2. CLEAR DTC (Using intelligent tester)
(a) Connect the intelligent tester to the DLC3. 
(b) Turn the ignition switch ON.
(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS / 
ENHANCED OBD II / DTC INFO / CLEAR CODES.
(e) Press the YES button.
3. CLEAR DTC (Without using intelligent tester)
(a) Perform either of the following operations.
(1) Disconnect the cable from the negative (-) 
battery terminal for more than 1 minute.
(2) Remove the EFI and ETCS fuses from the 
engine room relay block (located inside the 
engine compartment) for more than 1 minute. 

SEAT  –  FRONT POWER SEAT CONTROL SYSTEMSE–3
SE
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the 
problem symptom. The potential causes of the symptoms are 
listed in order of probability in the "Suspected Area" column 
of the table. Check each symptom by checking the suspected 
areas in the order they are listed. Replace parts as 
necessary.
Front power seat control system
ON-VEHICLE INSPECTION
1. CHECK POWER SEAT FUNCTION
(a) Check the basic functions.
(1) Operate the power seat switches and check to 
make sure each seat function works:
• Sliding 
•Front vertical
•Lifter
• Reclining
• Lumbar support
2. CHECK FRONT SEAT FRAME WITH ADJUSTER 
(SLIDING, FRONT VERTICAL, LIFTER AND 
RECLINING FUNCTIONS)
(a) Check the PTC operation inside the power seat 
motor.
HINT:
The PTC thermistor's resistance increases when the 
power seat switch is held down even after the power 
seat has been moved to the maximum in one 
direction. If the resistance increases beyond a 
specified level, current is cut to prevent a short 
circuit.
Symptom Suspected area See page
All functions do not operate (except lumbar support)1. P/SEAT fuseSE-1
2. Front power seat switchSE-124
3. Wire harness -
Only slide operation function does not operate1. Front power seat switchSE-124
2. Front seat frame with adjuster (slide motor)SE-125
3. Wire harness -
Only front vertical operation function does not operate1. Front power seat switchSE-124
2. Front seat frame with adjuster (front vertical motor)SE-125
3. Wire harness -
Only lifter operation function does not operate1. Front power seat switchSE-124
2. Front seat frame with adjuster (lifter motor)SE-125
3. Wire harness -
Only reclining operation function does not operate1. Front power seat switchSE-124
2. Front seat frame with adjuster (reclining motor)SE-125
3. Wire harness -
Only lumbar support operation function does not 
operate1. Front power seat lumbar switchSE-127
2. Lumbar support adjuster (lumbar support motor)SE-127
3. Wire harness -
B131377E01 

2GR-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEMES–45
ES
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal 
mode to check mode or vice versa, all DTCs and freeze 
frame data recorded in normal mode are erased. Before 
changing modes, always check and make a note of any 
DTCs and freeze frame data.
HINT:
• DTCs which are stored in the ECM can be displayed on 
the intelligent tester. The intelligent tester can display 
current and pending DTCs.
• Some DTCs are not set if the ECM does not detect the 
same malfunction again during a second consecutive 
driving cycle. However, such malfunctions, detected on 
only one occasion, are stored as pending DTCs.
1. CHECK DTC (Using intelligent tester)
(a) Connect the intelligent tester to the DLC3. 
(b) Turn the ignition switch ON.
(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS / 
ENHANCED OBD II / DTC INFO / CURRENT 
CODES or PENDING CODES.
(e) Check the DTC(s) and freeze frame data, and then 
write them down.
(f) Check the details of the DTC(s) (see page ES-56).
2. CLEAR DTC (Using intelligent tester)
(a) Connect the intelligent tester to the DLC3. 
(b) Turn the ignition switch ON.
(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS / 
ENHANCED OBD II / DTC INFO / CLEAR CODES.
(e) Press the YES button.
3. CLEAR DTC (Without using intelligent tester)
(a) Perform either of the following operations.
(1) Disconnect the cable from the negative (-) 
battery terminal for more than 1 minute.
(2) Remove the EFI and ETCS fuses from the 
engine room relay block (located inside the 
engine compartment) for more than 1 minute.
B127989E01 

CO–62GR-FE COOLING  –  COOLING FAN SYSTEM
CO
ON-VEHICLE INSPECTION
HINT:
It is normal for the cooling fan to sometimes rotate when the 
ignition switch is turned from ACC to ON.
1. CHECK COOLING FAN OPERATION AT LOW 
TEMPERATURES (Below 94
C (201F))
(a) Turn the ignition switch ON with the A/C switch OFF.
(b) Check that the cooling fan stops.
If it does not, check the cooling fan relays and 
engine coolant temperature sensor, and then check 
for disconnection of the connector or wire breaks 
between the cooling fan relay and engine coolant 
temperature sensor.
(c) Disconnect the engine coolant temperature sensor 
connector.
(d) Check that the cooling fan rotates.
If it does not, check the fuses, cooling fan relays, 
ECM and cooling fan, and then check for an open 
circuit between the cooling fan relay and engine 
coolant temperature sensor.
(e) Reconnect the engine coolant temperature sensor 
connector.
2. CHECK COOLING FAN OPERATION AT HIGH 
TEMPERATURES (Above 96
C (205F))
(a) Start the engine, and then raise the coolant 
temperature to above 96
C (205F).
HINT:
Coolant temperature is the value detected by the 
engine coolant temperature sensor on the cylinder 
head.
(b) Check that the A/C switch is OFF.
A132414
A126963
A132415 

2GR-FE CHARGING  –  CHARGING SYSTEMCH–5
CH
ON-VEHICLE INSPECTION
1. CHECK BATTERY CONDITION
NOTICE:
If the battery is weak or if the engine is difficult to 
start, perform the following procedures.
(a) Check the battery for damage and deformation. If 
severe damage, deformation or leakage is found, 
replace the battery.
(b) Check the electrolyte quantity of each cell.
(1) For maintenance-free batteries:
• If the electrolyte quantity is below the lower 
line, replace the battery.
• If the electrolyte quantity is above the lower 
line, check the battery voltage when 
cranking the engine. If the voltage is less 
than 9.6 V, recharge or replace the battery.
HINT:
Before checking the battery voltage, turn off all 
the electrical systems (headlights, blower 
motor, rear defogger, etc.).
(2) For non-maintenance-free batteries:
If the electrolyte quantity is below the lower 
line, add distilled water to each cell. Then, 
recharge the battery and check the electrolyte's 
specific gravity.
Standard specific gravity:
1.25 to 1.29 at 20
C (68F)
If the electrolyte quantity is above the lower 
line, check the battery voltage when cranking 
the engine. If the voltage is less than 9.6 V, 
recharge or replace the battery.
HINT:
Before checking the battery voltage, turn off all 
the electrical systems (headlights, blower 
motor, rear defogger, etc.).
2. INSPECT BATTERY TERMINAL AND FUSE
(a) Visually check the battery terminals.
(1) Check that the battery terminals are not loose 
or corroded.
(b) Measure the resistance of the H-fuses and fuses.
Standard resistance:
Below 1 
If the results are not as specified, replace the fuses 
as necessary.
A126950
A116907 

AX–36U140F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
AX
2. CLEAR DTC
(a) When using the intelligent tester:
(1) Connect the intelligent tester to the CAN VIM. 
Then connect the CAN VIM to the DLC3.
(2) Turn the ignition switch ON and turn the tester 
ON.
(3) Enter the following menus: DIAGNOSIS / 
ENHANCED OBD II / DTC INFO / CLEAR 
CODES. Then and press YES.
HINT:
When operating the tester to erase the codes, 
the DTCs and freeze frame data will be erased.
(b) When not using the intelligent tester:
(1) Disconnect the battery terminal or remove the 
EFI MAIN and ETCS fuses from the engine 
room No. 1 relay block and engine room No. 1 
junction block for 60 seconds or more. However, 
if you disconnect the battery terminal, perform 
the "INITIALIZATION" procedure (see page AX-
18).
C127596E01