TROUBLESHOOTING [ENGINE CONTROL KL]
DTC
P1250
Pressure regulator control (PRC) solenoid valve circuit malfunction
DESCRIPTION
• DTC P1250 indicates fuel pressure regulator control solenoid (PRC) valve circuit
malfunction
[Possible Cause]
• Damaged fuel pressure regulator control (PRC) solenoid
• Open or shorted circuit
valve
• Damaged PCM
STEP
INSPECTION
ACTION
1
CHECK FOR POWER CIRCUIT TO PRC
SOLENOID VALVE
• Disconnect PRC solenoid valve connector.
• Key on, engine off.
• Measure voltage between power circuit at
PRC solenoid valve connector and chassis
ground.
•
Is voltage greater than 10.5 volts?
Yes
Go to next step.
No
SERVICE open In power circuit between ignition switch
and PRC solenoid valve.
2
CHECK PRC SOLENOID VALVE
• Key off.
• PRC solenoid valve disconnected.
• Measure resistance of terminals at PRC
solenoid valve.
•
Is resistance less than 5.0 ohms?
Yes
Go to next step.
No
REPLACE PRC solenoid valve.
RERUN OBD Test.
3
CHECK PRC SOLENOID VALVE CIRCUIT
FOR SHORT TO POWER CIRCUIT
• Key off.
• PRC solenoid valve disconnected.
• Disconnect PCM. Inspect for damaged or
pushed out pins, corrosion, loose wires,
etc. Service as necessary.
• Install breakout box. Leave PCM
disconnected.
• Key on, engine off.
• Measure voltage between Test Pin
1
9
(PRC) at breakout box and chassis ground.
•
Is voltage less than 1.0 volt?
Yes
Go to next step.
No
SERVICE short to power.
REMOVE breakout box.
RECONNECT all components.
RERUN OBD Test.
4
CHECK PRC SOLENOID VALVE CIRCUIT
FOR SHORT TO GROUND
• Key off.
• Disconnect NGS tester from DLC.
• Breakout box installed.
• PCM disconnected.
• PRC solenoid valve disconnected.
• Measure resistance between Test Pin 19
and Test Pins 51 or 103 at breakout box.
•
Is resistance greater than 10,000 ohms?
Yes
Go to next step.
No
SERVICE short circuit.
REMOVE breakout box.
RECONNECT all components.
RERUN OBD Test.
5
CHECK PRC SOLENOID VALVE CIRCUIT
CONTINUITY
• Key off.
• Breakout box Installed.
• PCM disconnected.
• PRC solenoid valve disconnected.
• Measure resistance between PRC solenoid
valve circuit at PRC solenoid vehicle
harness connector and Test Pin 19 at
breakout box.
•
Is resistance less than 5.0 ohms?
Yes
REPLACE PCM.
RECONNECT all components.
RERUN OBD Test.
No
SERVICE open circuit.
REMOVE breakout box.
RECONNECT all components.
RERUN OBD Test.
01-01B -1 02
Содержание MX-6 1998
Страница 1: ......
Страница 501: ...STARTING SYSTEM 3 If not as specified replace the starter interlock switch 01 19 3...
Страница 803: ...MANUAL TRANSAXLE W 6 U 5 1 5 W A C 05 15 7...
Страница 934: ...CONTROL SYSTEM CONTROL SYSTEM STRUCTURAL VIEW W6U740WA0 07 40 2...
Страница 983: ...SERVICE TOOLS 08 60 SERVICE TOOLS 08 RESTRAINTS S S T 08 60 1 08 RESTRAINTS SST 08 60 1...
Страница 1005: ...TROUBLESHOOTING POWER DOOR LOCK SYSTEM From previous page Go to next page W 6 U 9 0 1 W H 3 09 01E 7...
Страница 1168: ...SEATS 4A 4 If not as specified replace the power seat switch 2A 2B t 4B 3A 1C 1A 1F W6U913WA9 09 13 7...