2005 TOYOTA AVENSIS Service Repair Manual

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Page 1185 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual I35353
Recirculation Damper Servo Sub±assy
Mode Damper Servo Sub±assy
Evaporator Temp. Sensor
Evaporator
Airmix Damper Servo Sub±assy
Airmix No.2 Damper
Servo Sub±assy
Blower Motor ControlBlower

Page 1186 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual I35410
BB WEngine Room R/B No.3Engine Room R/B No.1,
Engine Room J/B No.1Power Heater ECU
3 3 1A 1
12 PWR HTR
P15
+
FL MAIN
Battery
ECW±B W±BJ2
J/C
AAP11
± 1
± DIAGNOSTICSCOMBUSTION TYPE POWER HE

Page 1187 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual I36137
+
P1
I37732
1 23 4
5 67 8
±P1
05±1172
±
DIAGNOSTICS COMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
1CHECK FUSE(PWR HTR)
(a)Remove the PWR HTR from the engine room

Page 1188 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05C7Z±01
05±1170
±
DIAGNOSTICS COMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
If the normal code is displayed during DTC check although the problem sti

Page 1189 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05C7Y±01
I36138
P1
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
05±1169
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. POWER HEATER ECU
Terminal No. (Symbols)Wiring ColorConditionSpecifi

Page 1190 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05C7X±01
I36096
Heater Pump Assy Alternator Assy
Heater Assy
Center J/B
Heater Switch Assy
Driver Side J/B
HTR Fuse
05±1168
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL

Page 1191 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05C7W±01
05±1166
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the DTC check, check the

05C7W±01
05±1166
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
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 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 014 not is 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 conrol 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)

Page 1192 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
05±1167
AVENSIS REPAIR MANUAL (RM1018E)DTC No.Comment / Remedy Description of fault
071Surface sensor break
Check connecting leads.
Resistance valu

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