Page 1312 of 2234

±
HEATER & AIR CONDITIONER COMBUSTION TYPE POWER HEATER SYSTEM
55±17
AVENSIS REPAIR MANUAL (RM1018E)
5. DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the circuit\
listed for the code in the table below
and proceed to the appropriate page.
DTC No.Description of faultComment / Remedy
000No malfunction±
010
011Overvoltage shutoff
Undervoltage shutoffVoltage between 1 and 5 at connector A > 16 V
Voltage between 1 and 5 at connector A < 10.2 V
(Voltage values must be present > 20 seconds)
Check battery, regulator and electrical leads.
012Overheating
Check temperature at temperature or overheating sensor >
125 C
Check water circuit.
014Possible overheating detected
(Hardware threshold value)
Difference of measured values at temperature sensor > 15 C
(min. 70 C water temperature and metering pump in opera-
tion);
Check temperature sensor and overheating sensor, replace if
necessary.
017Overheating detected
(Hardware threshold value)
Temperature at temperature or overheating sensor > 130 C,
emergency OFF if DTC No. 012 or 014s not applicable;
Check water circuit, temperature sensor and overheating sen-
sor, replace if necessary.
020Glow plug breakCheck glow plug, replace if necessary.
021Glow plug output overloadCheck glow plug, replace if necessary.
030Combustion air blower motor
EMF outside perm. range.Blower impeller or burner motor fammed (frozen solid, dirty,
etc.)
Remedy jam, replace burner motor if necessary.
031Combustion air blower motor breakCheck the lead to combustion air motor (burner motor) for
continuity, replace if necessary.
032Combustion air blower motor short±circuit
Check combustion air blower motor (burner motor), replace if
necessary.
Check supply lead (chafed, etc.).
047Metering pump short±circuitCheck the supply lead to metering pump for short±circuit,
check metering pump, replace if necessary.
048Metering pump breakCheck the supply lead to metering pump for continuity, remedy
break, replace metering pump if necessary.
051Cold blow time exceeded
At start, if flame sensor above 70 C, > 240 sec.;
Check exhaust gas combustion air supply, check flame sen-
sor, replace if necessary.
052Safety time exceeded
When all perm. start attempts used up;
Check the fuel delivery and fuel supply.
Check exhaust gas and combustion air ducts.
054Flame cutout, High settingCheck the fuel delivery and fuel supply.
Check exhaust gas combustion air ducts.
056Flame cutout, LOW setting
Check exhaust gas combustion air ducts.
If combustion OK Check the flame sensor, replace if neces-
sary.
060Temperature control sensor break
Check connecting leads.
Resistance value between 2 and 10 connector B > 2 M (if
break)
061Temperature control sensor short±circuit
Check connecting leads.
Resistance value between 2 and 10 at connector B < 2 M (If
short± circuit)
064Flame sensor break
Check connecting leads.
Resistance value between 7 and 14 at connector B > 3,040
(If break)
065Flame sensor short±circuit
Check connecting leads.
Resistance value between 7 and 14 at connector B > 780 (If
short±circuit)
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Page 1315 of 2234

I32394
12
I32395
Wire harness side:
55±20
±
HEATER & AIR CONDITIONER COMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(d) Inspect the flame sensor. (1) Using an ohmmeter, measure the resistance be-tween terminals 1 and 2 of heater wire.
Resistance: Refer to the graph
If the resistance is not as specified, replace the heater wire.
2. INSPECT HETER SWITCH ASSY
(a) Disconnect the connector from the power heater switch and inspect the connector on the wire harness side, as
shown in the chart.
Tester connectionConditionSpecified condition
2 ± GroundConstantContinuity
4 ± GroundConstantContinuity
3 ± GroundTurn ignition switch ONBattery voltage
3 ± GroundTurn ignition switch OFFNo voltage
1 ± GroundTurn light control switch TAIL or HEADBattery voltage
1 ± GroundTurn light control switch OFFNo voltage
If the circuit is as specified, replace the power heat-
er switch.
If the circuit is not as specified, inspect the circuits
connected to other parts.
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Page 1316 of 2234
I32396
From back side:
±
HEATER & AIR CONDITIONER COMBUSTION TYPE POWER HEATER SYSTEM
55±21
AVENSIS REPAIR MANUAL (RM1018E)
(b) Connect the connector to the power heater switch and in-
spect the connector from the back side, as shown in the
chart.
Tester connectionConditionSpecified condition
6 ± GroundTurn the ignition switch ON and power heater
switch ONBattery voltage
6 ± GroundTurn the ignition switch ON and power heater
switch OFFNo voltage
If the circuit is not as specified, replace the power
heater switch.
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Page 1323 of 2234

550ZI±01
I35437
Connector ºBº
Wire harness side:
Connector ºAº
I36091
Connector ºBº
From back side:
Connector ºAº
55±22
±
HEATER & AIR CONDITIONER HOT GAS TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
HOT GAS TYPE POWER HEATER SYSTEM
ON±VEHICLE INSPECTION
1. INSPECT AIR CONDITIONING CONTROL ASSY
(a) Disconnect the connector from air conditioning control assy and inspect the connec\
tor on wire harness side, as shown in the table.
Symbols (Terminal No.)Wiring ColorConditionSTD Voltage (V)
SOL+ (B17) ±
GND (B40)R ± W±BStart engine
Compressor: OperatePulse generation
MGV (B14) ±
GND (B40) (*1)R±Y ± W±BStart engine
Compressor: OperatePulse generation
HOT GAS IN (B22) ± GND (B40) (*1)R±Y ± W±BIG SW: ON
Hot Gas SW: ONBattery positive voltage
If circuit is not as specified, try replacing the air conditioning control\
assy with a new one. If the circuit is not
as specified, inspect the circuits connected to the other parts.
(b) Connect the connector to air conditioning control assy and inspect wire harness side connector from the back side, as shown in the table.
Symbols (Terminal No.)ConditionSpecified condition
HI (A4) ± GND (A1)Ignition switch ON
Turn blower dial: OFF HINo continuity Continuity
M2 (A5) ± GND (A1)Ignition switch ON
Turn blower dial: OFF M2No continuity Continuity
M1 (A6) ± GND (A1)Ignition switch ON
Turn blower dial: OFF M1No continuity Continuity
GND (A1) ± Body groundIgnition switch ON
Turn blower dial: OFF LONo continuity Continuity
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Page 1391 of 2234

600A1±04
H42701
60±62
±
SUPPLEMENTAL RESTRAINT SYSTEM AIR BAG SENSOR ASSY CENTER
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE SHIFT LEVER KNOB SUB±ASSY (M/T TRANSAXLE) (See page 71±11)
4.REMOVE CONSOLE PANEL SUB±ASSY UPPER (See page 71±11)
5.REMOVE CONSOLE PANEL SUB±ASSY LOWER (See page 71±11)
6.REMOVE CONSOLE BOX ASSY RR (See page 71±11)
7.REMOVE AIR DUCT REAR NO.3 (See page 71±11)
8.REMOVE AIR DUCT REAR NO.4 (See page 71±11) 9. REMOVE AIR BAG SENSOR ASSY CENTER
(a) Disconnect the 3 connectors from the airbag sensor assycenter.
(b) Remove the 3 bolts and airbag sensor assy center.
10. INSTALL AIR BAG SENSOR ASSY CENTER
(a) Check that the ignition switch is off.
(b) Check that the battery negative (±) terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing the terminal.
(c) Temporarily install the airbag sensor assy center with the 3 bolts.
NOTICE:
If the airbag sensor assy center has been dropped, or there are any crac\
ks, dents or other de-
fects in the case, bracket or connector, replace the airbag sensor assy center with a new one.
When installing the airbag sensor assy center, take care that the SRS wiring does not interfere
with other parts and is not pinched between other parts.
(d) Tighten the 3 bolts to the specified torque. Torque: 17.5 N m (178 kgfcm, 13 ftlbf)
(e) Connect the connectors to the airbag sensor assy center.
(f) Check that no play is identified.
(g) Check that the water±proof sheet is properly set.
11.INSPECT SRS WARNING LIGHT (See page 05±1184)
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Page 1393 of 2234

600K6±01
H42699
60±64
±
SUPPLEMENTAL RESTRAINT SYSTEM AIR BAG SENSOR FRONT LH
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
HINT:
Replacement procedure of the RH side is the same as that for with LH side.
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1) 3. REMOVE AIR BAG SENSOR FRONT LH
(a) Remove the 2 bolts and airbag sensor front LH.
(b) Disconnect the connector from the airbag sensor frontLH.
4. INSTALL AIR BAG SENSOR FRONT LH
(a) Check that the ignition switch is off.
(b) Check that the battery negative (±) is terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing the terminal.
(c) Install the airbag sensor front LH with the 2 bolts. Torque: 8.0 N m (82 kgf cm, 71 in. lbf)
NOTICE:
If the airbag sensor front LH has been dropped, or there are any cracks,\
dents or other defects
in the case, bracket or connector, replace the airbag sensor front LH with a new one.
When installing the airbag sensor front LH, take care that the SRS wiring does not interfere\
with
other parts and is not pinched between other parts.
(d) Connect the connector to the airbag sensor front LH.
(e) Check that no play is identified.
5.INSPECT SRS WARNING LIGHT (See page 05±1184)
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Page 1395 of 2234

600K8±01
H42769
60±68
±
SUPPLEMENTAL RESTRAINT SYSTEM AIR BAG SENSOR REAR LH
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
HINT:
Replacement procedure of the RH side is the same as that for the LH side.
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE REAR DOOR SCUFF PLATE LH (See page 76±36)
4.REMOVE REAR SEAT CUSHION ASSEMBLY (SEDAN MODELS) (See page 76±36)
5.REMOVE REAR SIDE SEAT BACK ASSY LH (See page 76±36) 6. REMOVE AIR BAG SENSOR REAR LH
(a) Disconnect the connector of the airbag sensor rear LH.
(b) Remove the 2 bolts and the airbag sensor rear LH.
7.INSTALL AIR BAG SENSOR REAR LH (See page 60±11)
(a) Check that the ignition switch is off.
(b) Check that the battery negative (±) terminal is disconnected.
NOTICE:
Do not start the operation for 90 seconds after removing the terminal.
(c) Install the airbag sensor rear LH with the 2 bolts. Torque: 8.0 N m (82 kgf cm, 70 ft lbf)
NOTICE:
If the airbag sensor rear LH has been dropped, or there are any cracks, \
dents or other defects
in the case, bracket or connector, replace the airbag sensor rear LH with a new one.
When installing the airbag sensor rear LH, take care that the SRS wiring does not interfere \
with
other parts and is not pinched between other parts.
(d) Connect the connector of the airbag sensor rear LH.
(e) Check that no play is identified.
8.INSPECT SRS WARNING LIGHT (See page 05±1184)
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Page 1398 of 2234
600K1±01
H43005
H42755
Sedan/Liftback Models:
A
B
C
E
D F
G
60±38
±
SUPPLEMENTAL RESTRAINT SYSTEM CURTAIN SHIELD AIR BAG ASSY LH
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
HINT:
Replacement procedure of the RH side is the same as that for with LH side.
1.PRECAUTION (See page 60±1)
2.DISCONNECT BATTERY NEGATIVE TERMINAL (See page 60±1)
3.REMOVE ROOF HEADLINING ASSY (SEDAN MODELS) (See page 76±36)
4.REMOVE ROOF HEADLINING ASSY (LIFTBACK MODELS) (See page 76±45)
5.REMOVE ROOF HEADLINING ASSY (WAGON MODELS) (See page 76±54) 6. REMOVE CURTAIN SHIELD AIR BAG ASSY LH(SEDAN/LIFTBACK MODELS)
(a) Using a screwdriver, disconnect the connector of the cur- tain shield airbag assy LH.
(b) After removing the 4 screws and the 3 bolts in order as fol- lows, remove the curtain shield airbag assy LH.
A B C D E F G
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