
TROUBLESHOOTING [ENGINE CONTROL KL]
STEP
INSPECTION
ACTION
6
CHECK RESISTANCE OF EGR VALVE
• Key off.
• EGR valve disconnected.
• Measure resistance of EGR valve coils.
• Is each resistance approximately 22
ohms?
Yes
Go to next step.
No
REPLACE EGR valve.
RECONNECT all components.
RESET PCM to completely clear DTCs.
kt
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
7
CHECK EGR VALVE CIRCUIT CONTINUITY
• Key off.
• Disconnect PCM. Inspect for damaged or
pushed out pins, corrosion, loose wires,
etc. Service as necessary.
• Install breakout box, leave PCM
disconnected.
• Measure resistance between EGR signal
Test Pin at breakout box and EGR valve
vehicle harness connector. Record
readings.
• EGR valve— Test Pin 68.
• EGR valve— Test Pin 72.
• EGR valve— Test Pin 46.
• EGR valve— Test Pin 56.
•
Is each resistance less than
5.0
ohms?
Yes
Go to next step.
No
SERVICE open in EGR valve harness circuit.
REMOVE breakout box.
RECONNECT all components.
RESET PCM to completely clear DTCs.
c r After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
8
CHECK EGR VALVE CIRCUIT FOR SHORT
TO POWER AND SHORT TO GROUND
• Key off.
• EGR valve disconnected.
• Breakout box installed.
• Measure resistance between Test Pins 46,
56, 68, 72 and Test Pins 71, 97 and 90 at
breakout box.
• Measure resistance between Test Pins 46,
56, 68, 72 and Test Pins 51,103 and 91 at
breakout box.
•
Is each resistance greater than 10,000
ohms?
Yes
REPLACE EGR valve.
REMOVE breakout box.
RECONNECT all components.
RESET PCM to completely clear DTCs.
c r After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
No
SERVICE short in EGR valve harness circuit.
REMOVE breakout box.
RECONNECT all components.
RESET PCM to completely clear DTCs.
c r After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
9
CHECK POWER CIRCUIT TO EGR BOOST
SOLENOID VALVE
• Key off.
• EGR boost solenoid valve disconnected.
• Key on, engine off.
• Measure voltage between power circuit
and chassis ground at EGR boost solenoid
valve vehicle harness connector.
• Is EGR boost solenoid valve power
circuit voltage greater than 10.5 volts?
Yes
Go to next step.
No
SERVICE open in EGR boost solenoid valve power circuit.
RECONNECT all components.
RESET PCM to completely clear DTCs.
D "
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
1 0
CHECK RESISTANCE OF EGR BOOST
SOLENOID VALVE
•
Key off.
•
EGR boost solenoid valve disconnected.
•
Measure EGR boost solenoid valve
resistance.
•
Is resistance between 30 and 70 ohms?
Yes
Go to next step.
No
REPLACE EGR boost solenoid valve.
RESET PCM to completely clear DTCs.
d -
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
11
CHECK EGR BOOST SOLENOID VALVE
CIRCUIT CONTINUITY
•
Key off.
•
EGR boost solenoid valve disconnected.
•
Disconnect PCM. Inspect for damaged or
pushed out pins, corrosion, loose wires,
etc. Service as necessary.
•
Install breakout box.
•
Measure resistance between Test Pin 98 at
breakout box and EGR boost solenoid
valve circuit at solenoid valve vehicle
harness connector.
•
Is resistance less than 5.0 ohms?
Yes
Go to next step.
No
SERVICE open in EGR boost solenoid valve harness
circuit.
REMOVE breakout box.
RECONNECT all components.
RESET PCM to completely clear DTCs.
c r After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
0 1 -0 1 B -5 8
Summary of Contents for MX-6 1998
Page 1: ......
Page 501: ...STARTING SYSTEM 3 If not as specified replace the starter interlock switch 01 19 3...
Page 803: ...MANUAL TRANSAXLE W 6 U 5 1 5 W A C 05 15 7...
Page 934: ...CONTROL SYSTEM CONTROL SYSTEM STRUCTURAL VIEW W6U740WA0 07 40 2...
Page 983: ...SERVICE TOOLS 08 60 SERVICE TOOLS 08 RESTRAINTS S S T 08 60 1 08 RESTRAINTS SST 08 60 1...