2005 TOYOTA AVENSIS diagnostic

A81017
GeneratorGlow Plug ECMGLOW
Relay Battery
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±651
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0622 GENERATOR FIELD ºFº TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
While the generator is generating the current, the duty signal is sent from terminal M of the generator to the
ECM terminal ALT. The duty signal is used for detecting the open malfunction of the generator circuit and
DTC P0380.
DTC No.DTC Detection ConditionTrouble Area
P0622Generator terminal M duty signal is not output while engine is
running.

Open in generator circuit

Generator

Driver belt

ECM
MONITOR DESCRIPTION
The ECM will detect a generator failure or an open malfunction of the circuit, if the duty signal is not output
from terminal M of the generator despite the engine running.
MONITOR STRATEGY
Required sensorsGenerator circuit
Frequency of operationContinuous
Duration10 sec.
CHK ENG operation1 driving cycle
TYPICAL ENABLING CONDITIONS
ItemSpecificationItemMinimumMaximum
Battery voltage11 V±
Engine speed700 rpm2,000 rpm
TYPICAL MALFUNCTION THRESHOLDS
Threshold
There is no signal output from terminal M of the generator
05CQ7±01

A81011A81005
ECM
ALT 8
E13
G±Y
1
2 3
Battery
EI B±L
B
FL
MAINALT
12
3B
Engine Room
R/B No. 3
IJBR
B
B 35 15DH
DN 1 DH
18DB 9 DA ECU±IG I13
Ignition Switch 3
1
AM1AM1 IG1
G±R
ED1 1
WDriver
Side J/B
IG1
RelayA12 1
BB±L
A11 3
MY
A11 4
LRL 9
E12
Generator
IGS
21
A11A11
R±W
B
IK21
EE15
B
R±W R±WW±B
ALT±S
1 2 1
11AEngine
Room
R/B No. 1E1 7
E12
BBR G J10(LHD)
C J20(RHD)
J/C
G J10(LHD)
C J20(RHD) 33
W±B 05±652
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM

A80456
E13
ALTECM Connector
A81490
A11
Wire Harness Side
Generator Connector
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±653
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:

If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may be open.

Read freeze frame data using \b
 . Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for d\
etermining whether the vehicle
was running or stopped, the engine was warmed up or not, etc. at the time o\
f the malfunction.
1CHECK IF CHARGE LAMP IS ILLUMINATED
HINT:
Run the engine at 2,000 rpm, and check if the charge lamp located in the\
combination meter is OFF.
YESGo to step 3
NO
2CHECK HARNESS AND CONNECTOR(GENERATOR ± ECM)
(a)Disconnect the E13 ECM connector.
(b)Disconnect the A11 generator connector.
(c)Check for continuity between the wire harness side con- nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
ALT (E13±8) ± M (A11±3)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
ALT (E13±8) or M (A11±3) ± Body groundNo continuity
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
3INSPECT DRIVE BELT (See page 14±266)
NG REPAIR OR REPLACE DRIVE BELT (See page 14±269)
OK

05±654
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT CHARGING SYSTEM (See page 19±26)
GO
CHECK DTC OUTPUT RECUR (DTC P0622 OUTPUT AGAIN)
HINT:
After clearing the DTC, start the engine and let it idle for 10 seconds, and \
then confirm P0622 is not set again.

05±650
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0606ECM/PCM PROCESSOR
DTCP0607CONTROL MODULE PERFORMANCE
DTCP1611IC CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
DTC No.DTC Detection ConditionTrouble Area
P0606
P0607 P1611
ECM inside error (1 trip detection logic)
ECM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using \b
 ,. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determ\
ining whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfu\
nction.
REPLACE ECM (See page 10±65)
05CPY±01

A81010
B±Y
12
E10
2 Engine Room R/B No. 1
IE37
BATT
Battery BB
33
FL MAIN1
1A
1 Engine Room R/B No. 3
EFI
IO17
B±YECM
(LHD) (RHD)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±647
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0560 SYSTEM VOLTAGE
CIRCUIT DESCRIPTION
While the ignition switch is OFF, the battery positive voltage is supplied to terminal BATT of the ECM for the
DTCs memory and air±fuel ratio adaptive control value memory, etc.
DTC No.DTC Detection ConditionTrouble Area
P0560Open in back±up power source circuit (1 trip detection logic).
Open in back±up power source circuit

ECM
HINT:
If DTC P0560 appears, the ECM does not store other DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using   
 . Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfunction.
05CPX±01

A66058
EFI fuse
Engine Room R/B No. 1
A80463
BATT (+)
E10E12
E1 (±)ECM Connector
05±648
±
DIAGNOSTICS ECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
1 CHECK FUSE(EFI FUSE)
(a) Remove the EFI fuse from the engine room R/B No. 1.
(b) Check for continuity in the EFI fuse. Standard: Continuity
NG CHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED FUSE
OK
2 INSPECT ECM(BATT VOLTAGE)
(a) Measure the voltage between the specified terminals of the E10 and E12 ECM connectors.
Standard:
Symbols (Terminal No.)Specified condition
BATT (E10±2) ± E1 (E12±7)9 to 14 V
OKREPLACE ECM (See page 10±65)
NG

A80988
Engine Room R/B No. 1
EFI Fuse
A80464
BATT
ECM ConnectorE10
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±649
AVENSIS REPAIR MANUAL (RM1018E)
3 CHECK HARNESS AND CONNECTOR(EFI FUSE ± ECM, EFI FUSE ± BATTERY)
(a) Check the harness and connector between the EFI fuse
and ECM.
(1) Remove the EFI fuse from the engine room R/B No.
1.
(2) Disconnect the E10 ECM connector.
(3) Check for continuity between the wire harness side
connectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
EFI fuse (2) ± BATT (E10±2)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
EFI fuse (2) or BATT (E10±2) ± Body groundNo continuity
(b) Check the harness and connector between the EFI fuse
and battery.
(1) Remove the EFI fuse from the engine room R/B No.
1.
(2) Disconnect the battery positive terminal.
(3) Check for continuity between the wire harness side
connectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Battery positive terminal ± EFI fuse (1)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Battery positive terminal or EFI fuse (1) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE JUNCTION BLOCK