Mazda 2002 6 - Page 167

CONTROL SYSTEM
F–48–4
1Z PSP PSP switch Idle
Steering wheel
at straight
ahead position
B+
• Inspect PSP switch
(See F–58 POWER
STEERING
PRESSURE (PSP)
SWITCH
INSPECTION)
• Inspect power
steering system
• Inspect related
harness
While turning
steering wheel
Below 1.0
1AA
Generator output
voltage
Generator
(terminal P)
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect generator
• Inspect related
harness
1AB HO2S (front) HO2S (front)
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect HO2S (front)
(See F–56 HEATED
OXYGEN SENSOR
(HO2S)
INSPECTION)
• Inspect related
harness
1AC A/C on signal
Refrigerant
pressure switch
Idle
A/C switch and
fan switch on
Below 1.0
• Inspect refrigerant
pressure switch
• Inspect related
harness
A/C switch off B+
1AD
Generator field coil
control
Generator
(terminal D)
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect following
PIDs: IAT, ECT, RPM,
VPWR, ALTT V.
• Inspect generator
• Inspect related
harness
2A Throttle position TP sensor
Ignition switch
ON
CTP
0.65—
1.15
• Inspect TP sensor
(See F–51
THROTTLE
POSITION (TP)
SENSOR
INSPECTION)
• Inspect related
harness
WOT 4.3—4.8
2B —— — ——
2C —— — ——
2D CKP (+) CKP sensor
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect CKP sensor
(See F–54
CRANKSHAFT
POSITION (CKP)
SENSOR
INSPECTION)
• Inspect related
harness
2E IAT MAF/IAT sensor
Ignition switch
ON
IAT 20 °C
{68 °F}
2.4—2.6
• Inspect IAT sensor
(See F–50 INTAKE
AIR TEMPERATURE
(IAT) SENSOR
INSPECTION)
• Inspect related
harness
IAT 30 °C
{86 °F}
1.7—1.9
2F —— — ——
2G CKP (–) CKP sensor
• Inspect using the wave profile.
(See F–48–10 Inspection Using An
Oscilloscope (Reference).)
• Inspect CKP sensor
(See F–54
CRANKSHAFT
POSITION (CKP)
SENSOR
INSPECTION)
• Inspect related
harness
Terminal Signal Connected to Test condition
Voltage
(V)
Action