2005 TOYOTA AVENSIS diagnostic

A81017
Generator (Alternator)Glow Plug
ECM
Glow
Plug
Relay
Battery
Duty Ratio
05
−426
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
DTC P0622 GENERATOR FIELD ”F” TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
While the generator (alternator) is generating current, a duty ratio is sent from terminal M of the generator
to the ECM terminal ALT. This duty ratio is used for detecting an open malfunction of the generator circuit
and DTC P0380.
HINT:
DTC P0380 is prepared for indicating an open or short malfunction in the glow plug circuit. If this DTC is de-
tected, inspect the glow plug circuit. (See page 05 −386)
DTC No.DTC Detection ConditionTrouble Area
P0622
No duty ratio from terminal M of the generator (alternator) at
the engine running
(1 trip detection logic)SOpen in generator (alternator) circuit
S Generator (alternator)
S Drive belt
S ECM
HINT:
After confirming DTC P0622, check the internal fuel pressure of the common rail in the ”DIAGNOSIS / OBD/
MOBD / DATA LIST / ALL / GENERATOR” using the hand −held tester.
Result:
Engine SpeedGenerator Duty Ratio (%)
Idling10 to 100
When increasing engine speedGenerator duty ratio drops
When decreasing engine speedGenerator duty ratio rises
MONITOR DESCRIPTION
The ECM will detect a generator (alternator) failure or an open malfunction of the circuit, if the duty ratio is
not output from terminal M of the generator (alternator) despite running the engine.
MONITOR STRATEGY
Required SensorsGenerator (alternator) circuit
Frequency of operationContinuous
Duration10 seconds
CHK ENG Operation1 driving cycle
TYPICAL ENABLING CONDITIONS
ItemSpecificationItemMinimumMaximum
Battery voltage11 V−
Engine speed700 rpm2,000 rpm
05DW0 −02

A80456
E13
ALT
ECM Connector
A81490
A11
Wire Harness Side: Generator (alternator) Connector
Front View
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
05 −427
AVENSIS Supplement (RM1045E)
TYPICAL MALFUNCTION THRESHOLDS
Threshold
There is no duty ratio output from terminal M of the generator (alternator)
WIRING DIAGRAM
Refer to DTC P0380 on page 05 −386.
INSPECTION PROCEDURE
HINT:
SIf different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may have an open circuit.
SRead freeze frame data using the hand −held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the
vehicle was running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or
rich, and other data from the time the malfunction occurred.
1 CHECK IF CHARGE LAMP IS ILLUMINATED
HINT:
Run the engine at 2,000 rpm, and check if the charge lamp located in the combination meter remains illumi-
nated.
YES Go to step 3
NO
2 CHECK HARNESS AND CONNECTOR(GENERATOR (ALTERNATOR) −ECM)
(a) Disconnect the E13 ECM connector.
(b) Disconnect the A11 generator (alternator) connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
ALT (E13 −8) −M (A11 −3)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
ALT (E13 −8) or M (A11 −3) −Body ground10 k
or higher
(d) Reconnect the ECM connector.
(e) Reconnect the generator (alternator) connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

05−428
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
3 INSPECT DRIVE BELT (See page 14− 87)
NG REPAIR OR REPLACE DRIVE BELT
(See page 14− 269 of Pub. No. RM 101 8E AVEN-
SIS REPAIR MANUAL)
OK
4 INSPECT CHARGING SYSTEM (See page 19− 26 of Pub. No. RM 1018E AVENSIS REPAIR MANUAL)
GO
CHECK IF DTC OUTPUT RECURS (DTC P0622)
HINT:
After clearing the DTC, start the engine and let it idle for 10 seconds or more, and then confirm that P0622
is not present again.

−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −425
AVENSIS Supplement (RM 1045E)
DTC P0606 ECM/PCM PROCESSOR
DTC P0607 CONTROL MODULE PERFORMANCE
DTC P 1611 IC CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
DTC No.DTC Detection ConditionTrouble Area
P0606ECM internal errorP0606
P0607ECM internal erro r
(1 trip detection logic)S ECMP0607
P 1611(1 trip detection logic)S ECM
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air −fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
REPLACE ECM (See page 10− 29)
05CPY −05

A81010
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)
B−R (LHD)
B−Y (RHD)
05−422
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
DTC P0560 SYSTEM VOLTAGE
CIRCUIT DESCRIPTION
While the ignition switch is OFF, the battery voltage is supplied to terminal BATT of the ECM for storing DTCs
and fuel injection feedback learning values.
DTC No.DTC Detection ConditionTrouble Area
P0560
Condition (a) or (b) continues:
(a) Significant decrease in battery voltage
(b) Open in back−up power source circuit
(1 trip detection logic)SOpen in back−up power source circuit
SLow battery voltage
SECM
HINT:
If DTC P0560 appears, the ECM does not store other DTCs.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Read freeze frame data usingthe hand−held tester.Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean or rich, and other data
from the time the malfunction occurred.
05CPX−05

A82884
Engine Room R/B No.1:
EFI Fuse
A80463
BATT (+)
E10E12
E1 ( −)
ECM Connector
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
05 −423
AVENSIS Supplement (RM1045E)
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
(c) Reinstall the EFI fuse.
NG CHECK FOR SHORT IN ALL HARNESSES AND COMPONENTS CONNECTED TO FUSE
OK
2 INSPECT ECM(BATT VOLTAGE)
(a) Measure the voltage between the specified terminals of the E10 and E12 ECM connectors.
Standard:
Tester ConnectionSpecified Condition
BATT (E10 −2) −E1 (E12 −7)9to14V
OK REPLACE ECM (See page 10− 29)
NG

A82885
Engine Room R/B No.1:
EFI Fuse
A80464
BATT
ECM ConnectorE10
05−424
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
3 CHECK HARNESS AND CONNECTOR(EFI FUSE−ECM, EFI FUSE−BATTERY)
(a) Check the harness and connectors 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 the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
EFI fuse (2)−BATT (E10−2)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
EFI fuse (2) or BATT (E10−2)−Body ground10 k
or higher
(4) Reinstall the EFI fuse.
(5) Reconnect the ECM connector.
(b) Check the harness and connectors between the EFI fuse
and battery.
(1) Remove the EFI fuse from the engine room R/B No.
1.
(2) Disconnect the positive battery cable.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
Battery positive cable−EFI fuse (1)Below 1

Standard (Check for short):
Tester ConnectionSpecified Condition
Battery positive cable or EFI fuse (1)−Body ground10 k
or higher
(4) Reinstall the EFI fuse.
(5) Reconnect the positive battery terminal.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
4 INSPECT BATTERY(VOLTAGE)
(See page19−26 of Pub. No. RM1018E AVENSIS REPAIR MANUAL)
NG REPAIR OR REPLACE BATTERY
OK
REPLACE JUNCTION BLOCK

− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−411
AVENSIS Supplement (RM1045E)
DTC P0504 BRAKE SWITCH ”A”/”B” CORRELATION
CIRCUIT DESCRIPTION
In this system, the signal of the stop lamp switch is used to judge whether the brake system is abnormal or
not.
The stop lamp switch has a duplex system (signals STP and ST1−) to detect abnormality. When the signals
of depressing and releasing the brake pedal are detected simultaneously, the ECM interprets this as mal-
function of the stop lamp switch.
HINT:
Normal condition is as shown in the table below.
SignalBrake Pedal ReleasedIn TransitionBrake Pedal Depressed
STPOFFONON
ST1−ONONOFF
DTC No.DTC Detection ConditionTrouble Area
P0504
Conditions (a) and (b) continue for 0.5 second or more:
(1trip detection logic)
(a) Ignition switch is in ON
(b) STP signal is OFF when the ST1−signal is OFF (when
brake pedal is released)
SShort in stop lamp switch signal circuit
SStop lamp switch
SECM
05CPW−03