Page 1225 of 4179
REFRIGERANT PRESSURE SENSOR
EC-847
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6. CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between refrigerant pressure sensor terminal 2 and ECM terminal 69.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E61, F38
Harness for open or short between refrigerant pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-570, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationEBS0114X
REFRIGERANT PRESSURE SENSOR
Refer to ATC-141, "REFRIGERANT LINES" . Continuity should exist.
Page 1226 of 4179
EC-848
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ELECTRICAL LOAD SIGNAL
ELECTRICAL LOAD SIGNALPFP:25350
CONSULT-II Reference Value in Data Monitor ModeEBS0114Z
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
LOAD SIGNAL
Ignition switch: ONRear window defogger switch is ON and/or
lighting switch is 2nd.ON
Rear window defogger switch is OFF and light-
ing switch is OFF.OFF
HEATER FAN SW
Ignition switch: ONHeater fan is operating ON
Heater fan is not operating OFF
Page 1227 of 4179
ELECTRICAL LOAD SIGNAL
EC-849
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Wiring DiagramEBS01150
LHD MODELS
TBWA0635E
Page 1228 of 4179
EC-850
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ELECTRICAL LOAD SIGNAL
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
84 L/YElectrical load signal
(Headlamp signal)[Ignition switch: ON]
Lighting switch: 2nd positionBATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
Lighting switch: OFFApproximately 0V
96 LG/B Heater fan switch[Engine is running]
Heater fan switch: ONApproximately 0V
[Engine is running]
Heater fan switch: OFFBATTERY VOLTAGE
(11 - 14V)
Page 1229 of 4179
ELECTRICAL LOAD SIGNAL
EC-851
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TBWA0636E
Page 1230 of 4179
EC-852
[QR (WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
93 BRElectrical load signal
(Rear window defogger
signal)[Ignition switch: ON]
Rear window defogger switch: ONBATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
Rear window defogger switch: OFFApproximately 0V
Page 1231 of 4179
ELECTRICAL LOAD SIGNAL
EC-853
[QR (WITHOUT EURO-OBD)]
C
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EC
RHD MODELS
TBWA0637E
Page 1232 of 4179
EC-854
[QR (WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
84 L/YElectrical load signal
(Headlamp signal)[Ignition switch: ON]
Lighting switch: 2nd positionBATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
Lighting switch: OFFApproximately 0V
96 LG/B Heater fan switch[Engine is running]
Heater fan switch: ONApproximately 0V
[Engine is running]
Heater fan switch: OFFBATTERY VOLTAGE
(11 - 14V)