2002 TOYOTA AVENSIS lights

710CM±02
±
INSTRUMENT PANEL/METER COMBINATION METER
71±1
AVENSIS REPAIR MANUAL (RM1018E)
COMBINATION METER
PROBLEM SYMPTOMS TABLE
Warning Lights:
SymptomSuspect AreaSee page
Check Engine warning light does not come on.
1.Wire Harness or Connector
2.ECM
3.Combination Meter Assy±
±
±
Discharge warning light does not come on.
1.Wire Harness or Connector
2.ECM
3.Combination Meter Assy±
±
±
Brake warning light does not come on.
1.Wire Harness or Connector
2.Skid control ECU
3.Combination Meter Assy±
±
±
ABS warning light does not come on.
1.Wire Harness or Connector
2.Skid control ECU
3.Combination Meter Assy±
±
±
SRS warning light does not come on.
1.Wire Harness or Connector
2.Airbag Sensor Assy
3.Combination Meter Assy±
05±1197 ±
Open Door warning light does not come on.
1.Wire Harness or Connector
2.Front Door Courtesy Light
3.Body ECU
4.Combination Meter Assy±
±
±
±
Fuel Level warning light does not come on.
1.Wire Harness or Connector
2.Fuel Sender Gauge
3.Combination Meter Assy±
±
±
Low Oil Pressure warning light does not come on.
1.Wire Harness or Connector
2.Low Oil Pressure Warning Switch
3.Combination Meter Assy±
±
±
Engine Oil Level warning light does not come on.
1.Wire Harness or Connector
2.Oil Level Sensor
3.Combination Meter Assy±
±
±
Belt warning light does not come on.
1.Wire Harness or Connector
2.Body ECU
3.Front Inner Belt Assy
4.Combination Meter Assy±
±
05±1522
±
VSC warning light does not come on.
1.Wire Harness or Connector
2.VSC Circuit
3.Combination Meter Assy±
05±752 ±
Indicator Lights:
SymptomSuspect AreaSee page
Shift indicator light do not come on.
1. Wire Harness or Connector
2. ECM
3. Neutral Start Switch Circuit
4. Combination Meter Assy±
±
±
±
Turn indicator light does not come on.
1. Wire Harness or Connector
2. Turn Signal and Hazard Warning System
3. Combination Meter Assy±
65±9 ±
Glow indicator light does not come on.
1. Wire Harness or Connector
2. ECM
3. Combination Meter Assy±
±
±
TRC off indicator light does not come on.
1. Wire Harness or Connector
2. VSC Circuit
3. Combination Meter Assy±
05±752 ±

D25085
B02389
ON 01±28
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)

Do not apply heat directly to the parts in the ECU.
3. WATER SPRINKLING METHOD: When the malfunc-
tion seems to occur on a rainy day or in high±humid-
ity.
(a) Sprinkle water onto the vehicle and check if the malfunc-
tion occurs.
NOTICE:

Never sprinkle water directly onto the engine
compartment, but indirectly change the temperature
and humidity by spraying a mist of water onto the ra-
diator front surface.

Never apply water directly onto the electronic compo-
nents.
HINT:
If a vehicle is subject to water leakage, the leaking water may
contaminate the ECU. When testing a vehicle with a water leak-
age problem, this factor must also be considered.
4. OTHERS: If the malfunction seems to occur when
electrical load is excessive.
(a) Turn on all the electrical equipment including the heater
blower, headlights, rear window defogger, etc., and check
if the malfunction occurs.

01±30±
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
The suspected circuits or parts for each problem symptom are shown in the t\
able below. Use this table to
troubleshoot the problem when a Normal code is displayed in the diagnostic trouble c\
ode chart but the prob-
lem is still occurring. Numbers in the table indicate the order in which\
the circuits or parts should be checked.
HINT:
When the problem is not detected by the diagnostic system even though the pr\
oblem symptom is present,
it may be that the problem is occurring outside the detection range of t\
he diagnostic system.
Symptom Suspected AreaSee page
1. With the ignition switch in ACC or ON position, the SRS warning
light sometimes lights up after approx. 6 seconds have elapsed.
2. SRS warning light is always lit up even when ignition switch is
in the LOCK position
1. With the ignition switch in the ACC or ON position, the SRS
warning light does not light up.
PROBLEM SYMPTOMS TABLE
1. DTC is not displayed. 05±187 05±183
Problem SymptomPage
Indicates the page where the flow chart for each circuit
is located.
Circuit Inspection, Inspection Order
Indicates the circuit which needs to be checked for each problem
symptom. Check in the order indicated by the numbers.
Circuit or Part Name
Indicates the circuit or part which needs to be checked.
Proceed with troubleshooting of each circuit in the table below.
1. SRS warning light circuit
(Always lights up when ignition switch is in
LOCK position.)
1. SRS warning light circuit
(Does not light up when ignition switch is turned
to ACC or ON.)
1. Tc terminal circuit
05±180





3. DTC is displayed without Tc and CG terminal connection. 2. SRS warning light is always lit up at the time of DTC check
procedure.

650SV±01
I33423
V LH LineV RH LineV Line
Ground
H Line
± LIGHTINGHEADLAMP UNIT LH
65±19
AVENSIS REPAIR MANUAL (RM1018E)
ADJUSTMENT
1. HEADLIGHT AIM ONLY
HINT:

Perform aiming adjustment with Low±beam.

Since the Low±beam light and the High±beam light is a
unit, if aiming on either side is connect, the other side
should also be connect.
However, check both beams just to make sure.
(a) Prepare vehicle in the following conditions.

Check that any damage or deformation does not exist on
the body around the headlights.

Fuel tank is full.

The tire inflation pressure is at the specified level.

Vehicle is parked at a level surface.

A person having an average weight sits in the driver's
seat.

Vehicle is bounced up and down to stabilize the suspen-
sion to the normal position.
(b) Prepare a thick white paper (Draw base lines).
HINT:

Stand the paper perpendicular as against a wall.

The base lines differ for ºLow±beam inspectionº and
ºHigh±beam inspectionº.
(1) V line (Vehicle Center position)
Draw a vertical line down the center of the paper in
order to align it with the center of the vehicle.
(2) H line (Headlight height)
Draw horizontal line across the paper at the same
height from the ground as the center mark for the
Low±beam lights.
(3) V LH line, V RH line (Center mark position of right
and left headlights)
Draw vertical lines, for left & right, at the same posi-
tion as the center mark for the Low±beam lights.
HINT:
Follow the same procedures when adjusting the High±beam
lights.

I35248
V LH Line
V RH Line
V Line90
3 m (9.84 ft)
I37308
Low Beam:V LH Line
V RH Line
30mm
(1.18 in.)84 mm
(3.3 in.)
H Line6mm
(0.23 in.)
I37102
High Beam:V LH Line
V RH Line
H Line
I35802Adjusting Bolt A
Adjusting Bolt B
65±20
± LIGHTINGHEADLAMP UNIT LH
AVENSIS REPAIR MANUAL (RM1018E)
(c) Check the headlight aiming.
(1) Align the paper with the center of the vehicle.

Make a distance of 3 m ( 9.84 ft) between the head-
lights and the paper, and put the paper against a
wall with the H line being at the same height as the
center mark.

Align the center of the vehicle with the V line on the
paper, and ensure that the paper is at a 90 angle
in accordance to the V line.
(2) Start the engine.
(3) Turn on the headlights and check that the aim is with
in the specified valves shown in the illustration.
NOTICE:

When covering the headlights, finish it within 3 mi-
nuites.

The headlight lens is made of synthetic resin, so it is
easily.
HINT:
When checking the aiming of the High±beam, shut off the Low±
beam or disconnect the Low±beam headlight connector.
(d) Adjust the aim in the vertical direction:
Using a screwdriver, adjust the headlight aim within the
specified range by turning the aiming screw A.
NOTICE:

Adjust the headlight aim by turning the screw in the
tightening direction.

When the screw is tightened excessively, loosen it
once and re±tighten it to adjust the headlight aim.
HINT:
The optical axis aim moves downward when turning the screw-
driver clockwise, and it moves upward when turning the screw-
driver counterclockwise.
(e) Adjust the aim in the horizontal direction:
Using a screwdriver, adjust the headlight aim within the
specified range by turning the aiming screw B.
NOTICE:

Adjust the headlight aim by turning the screw in the
tightening direction.

When the screw is tightened excessively, loosen it
once and re±tighten it to adjust the headlight aim.

650NC±02
± LIGHTINGLIGHTING SYSTEM
65±1
AVENSIS REPAIR MANUAL (RM1018E)
LIGHTING SYSTEM
PRECAUTION
1. PRECAUTION OF HEADLIGHT BULB REPLACEMENT
(a) When any defects such as deformation, crack, dent, chipping, etc. are identified on the discharge
headlight (especially, on the light control ECU), replace it with a new one.
(b) Even if the operation seems to be normal, the fail±safe function may be defective.
(c) Be careful not to scratch on drop bulbs of the discharge headlamp and halogen bulbs (for headlamp
and fog lamp), as they have pressurized gas inside and can be easily broken.
(d) Touching the HV socket of the discharge headlight with the headlight dimmer switch ON could gener-
ate momentary high voltage of 20,000 V and lead to a serious injury.
(e) Never connect a tester to the high voltage socket of the discharge headlight for measurement, as this
leads to a serious injury because of high voltage.
(f) When performing operation related to the discharge headlight, keep it away from water including rain,
turn off the light control switch, and disconnect the battery terminal and the connector of the light control
ECU in advance to avoid electric shock.
(g) When performing operation related to the discharge headlight, start it after assembling is completed
and never turn the lights on without a bulb installed.
(h) Do not turn the discharge headlight on using another power source except vehicle's.

± LIGHTINGLIGHTING SYSTEM
65±7
AVENSIS REPAIR MANUAL (RM1018E)
(b) Connect the connector to the headlamp leveling ECU
assy, then turn the ignition switch ON and light control
switch into HEAD position. Inspect the wire harness side
connector from the back side as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
2 ± body groundAlways5 V
3 ± body ground3 secs. after vehicle height change for 10 secs.1.0 to 13 V
4 ± body ground3 secs. after vehicle height change for 10 secs.1.0 to 13 V
5 ± body groundAlways0 to 5 V
6 ± body groundAlways0 to 5 V
10 ± body groundHeadlamp Switch is OFF
ON10 to 14 V
Below 1 V
11 ± body groundBeam level warning light OFF
ON10 to 14 V
Below 1 V
12 ± body groundTurn the vehicle wheelPuls generation
13 ± body groundAlways10 to 14 V
14 ± body groundAlways10 to 14 V
15 ± body groundAlways5 V
20 ± body groundAlwaysBelow 1 V
21 ± body groundAlwaysBelow 1 V
22 ± body groundAlwaysBelow 1 V
23 ± body groundAlwaysBelow 1 V
4. HEADLAMP AUTO LEVERING OPERATION CHECK
(a) Check that the initialization (determination of the initial position) for the leveling motor is performed at
the engine±start.
(b) Check that the warning indicator in the combination meter assy illuminates for approximately 3 se-
conds at the engine±start and then goes off.
(c) Check that the reflector works when:
Keeping the rear of the vehicle up or down while the engine is running with the vehicle stopped and
the headlamp dimmer switch in the HEAD position.
NOTICE:
Make sure to change the vehicle's height slowly.
5. FAIL±SAFE FUNCTION
(a) Headlamp Leveling Control ECU
HINT:
The Headlamp Leveling Control ECU performs the fail±safe when detecting following troubles. At this the
warning indicator light on the combination meter lights up.
Trouble AreaConditionHeadlight levering motor
1. Height control sensor
Signal level error

Out of voltageStop leveling operation
2. Headlamp leveling control ECU
Watchdock detection

High voltageStop leveling operation

65±8
± LIGHTINGLIGHTING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(b) Light control computer
ConditionContent
Output openLighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF
ON).
Short between output terminalsLighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF
ON).
Leakage between output terminal and body groundLighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF
ON).
Low lamp voltageLighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF
ON).
High lamp voltageLighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF
ON).
Bulb flushing

The condition is maintained more than 60 seconds.

Lighting of the headlamp stops, the condition is maintained until
switch is turned ON again (headlamp dimmer switch OFF

ON).
High input voltageLighting of the headlamp stops. As soon as the voltage comes
within the range of operation voltage (9 ± 16 V), it lights up again.
Low input voltage
When voltage become 9.0 V
7.5 V, lighting condition is main-
tained until possible voltage (Below 6 V) to keep lighting and light-
ing of the headlamp stops.
As soon as the voltage becomes within the range of operation
voltage (more than 9 V), it lights up again.