TROUBLESHOOTING [ENGINE CONTROL FS]
KOEO
P0230
DTC
Fuel pump primary circuit malfunction
DESCRIPTION
• DTC P0230 indicates a fuel pump circuit failure
[Possible Cause]
• Damaged Fuel Pump Relay
• Open or shorted circuit
• Damaged PCM
STEP
INSPECTION
ACTION
1
CHECK FOR POWER TO FUEL PUMP
RELAY
•
Disconnect the fuel pump relay.
• Key on, engine off.
• Measure voltage between power circuit at
the fuel pump relay vehicle harness
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 fuel pump relay.
RECONNECT fuel pump relay.
RERUN OBD Test.
2
CHECK FUEL PUMP RELAY
• Is fuel pump relay okay?
Yes
Go to next step.
No
REPLACE fuel pump relay.
RERUN OBD Test.
3
CHECK FUEL PUMP CIRCUIT FOR SHORT
TO POWER
• Key off.
• Disconnect fuel pump relay.
• 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 appropriate Test
Pin at breakout box and chassis ground.
• With immobilizer system=Test Pin 70
• W ithout immobilizer system=Test Pin 80
•
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 FUEL PUMP CIRCUIT FOR SHORT
TO GROUND
•
Key off.
•
Disconnect NGS tester from DLC.
•
Breakout box installed. PCM disconnected.
•
Disconnect fuel pump relay.
• Measure resistance between appropriate
Test Pin and Test Pins 51 or 103 and 91 at
breakout box.
•
With immobilizer system=Test Pin 70
• Without immobilizer system=Test Pin 80
• 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 FUEL PUMP CIRCUIT CONTINUITY
•
Key off.
•
Breakout box installed, PCM disconnected.
•
Disconnect fuel pump relay.
•
Measure resistance between Fuel Pump
circuit at fuel pump relay vehicle harness
connector and appropriate Test Pin at
breakout box.
•
With immobilizer system=Test Pin 70
•
Without immobilizer system=Test Pin 80
• 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.
0 1 -0 1 A -4 6
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...