Subaru Legacy 2002 Service Manual page 2963

Instrumentation/Driver Info
B: INSPECTION
CAUTION:
¼ When measuring voltage and resistance of the ECM, TCM, or each sensor, use a tapered pin with
a diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert the pin more
than 2 mm (0.08 in).
¼ Luminescent meter has a CFL (Cold cathode fluorescent light) inverter that generates a high-ten-
sion current. Do not touch the inverter terminal when checking combination meter with ignition
switch turned ON.
1. SYMPTOM CHART
Symptom
Combination meter assembly does not operate.
Speedometer does not operate.
Tachometer does not operate.
Fuel gauge does not operate.
Water temperature gauge does not operate.
Outside temperature indicator does not operate.
Indicator and warning lights illuminate normally,
but meter characters are not displayed when
turning ignition switch ON (Luminescent meter).
COMBINATION METER SYSTEM
S907607A10
S907607A1007
(1) Power supply
(2) Ground circuit
(1) (MT) Vehicle speed sensor
(AT) Transmission control module
(2) Harness
(3) Speedometer
(1) Engine control module
(2) Harness
(3) Tachometer
(1) Fuel level sensor
(2) Harness
(3) Fuel gauge
(1) Engine coolant temperature sensor
(2) Harness
(3) Water temperature gauge
(1) Ambient sensor
(2) Harness
(3) Combination meter
Combination meter printed circuit
Repair order
IDI-6
Reference
<Ref. to IDI-7, CHECK
POWER SUPPLY AND
GROUND CIRCUIT,
INSPECTION, Combina-
tion Meter System.>
MT: <Ref. to IDI-8,
CHECK VEHICLE
SPEED SENSOR,
INSPECTION, Combina-
tion Meter System.>
AT: <Re. to IDI-9,
CHECK TRANSMIS-
SION CONTROL
MODULE,
INSPECTION, Combina-
tion Meter System.>
<Ref. to IDI-10, CHECK
ENGINE CONTROL
MODULE,
INSPECTION, Combina-
tion Meter System.>
<Ref. to IDI-11, CHECK
FUEL LEVEL SENSOR,
INSPECTION, Combina-
tion Meter System.>
<Ref. to IDI-12, CHECK
ENGINE COOLANT
TEMPERATURE
SENSOR,
INSPECTION, Combina-
tion Meter System.>
<Ref. to IDI-13, CHECK
OUTSIDE TEMPERA-
TURE INDICATOR,
INSPECTION, Combina-
tion Meter System.>
<Ref. to IDI-14, CHECK
COMBINATION METER
PRINTED CIRCUIT,
INSPECTION, Combina-
tion Meter System.>