2005 TOYOTA AVENSIS diagnostic

A81506
From Battery
Glow System Wiring Diagram:
Glow Plug Relay
Glow Plug ECM
GREL
GLOW Fuse
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
05 −389
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
HINT:
S After completing repairs, confirm that P0380 is not present again.
S 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.
1 CHECK OTHER DTC OUTPUT(IN ADDITION TO DTC P0380)
(a) Connect the hand −held tester to the DLC3.
(b) Turn the ignition switch to ON and turn the hand −held tester ON.
(c) Select the item ”DIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODES”.
(d) Read DTCs.
Result:
Display (DTC output)Proceed to
P0380A
P0380 and P0622B
HINT:
If any other codes besides P0380 and P0622 are output, perform troubleshooting for those DTCs first.
B GO TO RELEVANT DTC CHART(See page 05 −299)
A

A85520
123
2 3
4
4
1
A80987
R/B No. 3:
GLOW
Fuse
B08263
Ohmmeter
Continuity 05−390
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
2 INSPECT GLOW PLUG RELAY ASSY
(a) Remove the glow plug relay.
(b) Check for continuity in the glow plug relay.
(1) Check that there is continuity between the termi-
nals.
Standard:
Tester ConnectionSpecified Condition
No continuity
3−4Continuity
(Apply battery voltage to terminals 1 and 2)
1−2Continuity
(c) Reinstall the glow plug relay.
NG REPLACE GLOW PLUG RELAY ASSY
OK
3 INSPECT FUSE(GLOW FUSE)
(a) Remove the GLOW fuse from the R/B No. 3.
(b) Check for continuity in the GLOW fuse.
Standard: Continuity
(c) Reinstall the GLOW fuse.
NG CHECK FOR SHORT IN ALL HARNESS AND
COMPONENTS CONNECTED TO FUSE
OK
4 INSPECT GLOW PLUG ASSY
(a) Disconnect the glow plug wire.
(b) Measure the resistance in the glow plug.
Standard:
Tester ConnectionSpecified Condition
Glow plug terminal−Body groundApproximately 1.1
at 20_C (68_F)
NOTICE:
SExercise extreme care not to damage the glow plug
pipes. Damaging them could cause an open circuit, or
shorten the life of the glow plugs.
SKeep the glow plug free of oil and fuel while cleaning.
SWipe any oil off the terminal and Bakelite washer with
a clean−dry cloth during inspection.
SDo not apply more than11V to the glow plug as it
could cause an open circuit.
(c) Reconnect the glow plug wire.

A81091
E9
ECM ConnectorGREL
A85521
−S
+S3
41
2
A85521
L
B3
41
2
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−391
AVENSIS Supplement (RM1045E)
NG REPLACE GLOW PLUG ASSY
(See page19−33 of Pub. No. RM1018E AVENSIS
REPAIR MANUAL)
OK
5 INSPECT GLOW PLUG ASSY(INSTALLATION)
NG TIGHTEN GLOW PLUG
OK
6 CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY−ECM, AND GLOW
PLUG RELAY−BODY GROUND)
(a) Disconnect the E9 ECM connector.
(b) Remove the glow plug relay.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open):
Tester ConnectionSpecified Condition
+S (Glow plug relay terminal 2)−GREL (E9−15)Below1
−S (Glow plug relay terminal 1)−Body groundBelow 1

Standard (Check for short):
Tester ConnectionSpecified Condition
GREL (E9−15)−Body ground10 k
or higher
(d) Reconnect the ECM connector.
(e) Reinstall the glow plug relay.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
7 CHECK HARNESS AND CONNECTOR(GLOW PLUG RELAY−GLOW PLUG, AND
GLOW PLUG RELAY−BATTERY)
(a) Remove the glow plug relay.
(b) Disconnect the glow plug wire.
(c) Check the resistance between the wire harness.
Standard (Check for open):
Tester ConnectionSpecified Condition
L (Glow plug relay terminal 3)−Glow plug wire
B (Glow plug relay terminal 4)
−Positive terminal of the batteryBelow 1

(d) Reinstall the glow plug relay.
(e) Reconnect the glow plug wire.

A66060
E13E9
E2 GREL
ECM Connector
A80463
BATT (+)
E10E12
E1 (
−)
ECM Connector
05 −392
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
8 INSPECT ECM(GREL VOLTAGE)
(a) Turn the ignition switch to START.
(b) Measure the voltage between the specified terminals of the E9 and E13 ECM connectors.
Standard:
Tester ConnectionConditionSpecified Condition
GREL (E9 −15) −
E2 (E13 −28)Engine coolant tempera-
ture is 40 _ C (104 _ F) or
less
9to 14V
NG REPLACE ECM (See page 10− 29)
OK
9 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)9to 14V
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (BATTERY − ECM)
OK
CHECK FOR INTERMITTENT PROBLEMS (See page 05 −270)

G25416
ECM
KD
E10 K2
Kick Down SW
IP66
CA
1
2 CJ
IG24
W−BCenter J/B
30
8
IG2
W−B
W W W−B
05−634− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
KICK DOWN SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The kick−down switch is turned ON when the accelerator pedal is fully depressed and a signal is sent to the
ECM.
When the kick−down switch is turned ON, the ECM controls gear shifting according to the programmed shift
diagrams.
If a short circuit develops in the kick−down switch, the ECM disregards the kick−down signals and controls
shifting at the normal shift points.
WIRING DIAGRAM
05JLM−01

G26420
Wire Harness Side:
(Connector Front View):K2
G26835
1
2
K2
Switch Side:
(Connector Front View):
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−635
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(KICK DOWN SWITCH − BODY GROUND)
(a) Disconnect the kick −down switch connector.
(b) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester ConnectionSpecified Condition
1− Body groundBelow 1

NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
2 INSPECT KICK DOWN SWITCH
(a) Measure resistance according to the value(s) in the table below when kick −down switch is ON and OFF.
Standard:
Switch ConditionTester ConnectionSpecified Condition
Press continuously
(Kick −down switch is ON)1 −2Below 1

Release
(Kick −down switch is
OFF)
10 k
or higher
NG REPLACE KICK DOWN SWITCH
OK

C82160
E13E12E11E10E9
KD
ECM:
05
−636−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
3 CHECK HARNESS AND CONNECTOR(KICK DOWN SWITCH − ECM)
(a) Connect the kick −down switch connector.
(b) Disconnect the ECM connector.
(c) Measure resistance according to the value(s) in the table below when accelerator pedal is fully depressed or not.
Standard:
Switch ConditionTester ConnectionSpecified Condition
Fully depressed
(Kick −down switch is ON)E10 −30 (KD) −
Body groundBelow 1

Release
(Kick −down switch is
OFF)
10 k
or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05 −545)

D30688
ECM
MPX2
MPX1 29
18 E10 11
B8
22 SNOWI14
Integration Relay
8 14
DA B E8
ECT Pattern Select SW
*1: RHD
*2: LHD 4 1 W−B
CH
CF
CA 8
11
6
W−B
IPE10 MPX1
MPX2
*1
*2
B8
(*3) Pattern Select Switch (ECT SNOW Switch)
When the ECT SNOW switch is pushed, the switch contact is made and the ECT SNOW mode is selected.
To cancel the ECT SNOW mode, push the ECT SNOW switch once again. The ECT SNOW mode is automatical-
ly cancelledout when the ignition switch is turned ”OFF”.
*3
Instrument Panel J/B 05−630
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
PATTERN SELECT SWITCH CIRCUIT
CIRCUIT DESCRIPTION
Integration relay receives pattern select switch information, and sends it through the multiplex communica-
tion system to the ECM.
ECT SNOW is the system that operates the throttle motor to control engine output to reduce skidding of the
driving wheels, guarantee takeoff acceleration, driving straightness and turning stability.
WIRING DIAGRAM
05JLL−01