TROUBLESHOOTING [ENGINE CONTROL KL]
STEP
INSPECTION
ACTION
6
CHECK HEATED OXYGEN SENSOR
CIRCUIT RESISTANCE
• Key off.
• PCM connected to vehicle harness.
• Disconnect suspected heated oxygen
sensor connector.
• NGS tester connected.
• Key on, engine off.
• Access correct heated oxygen sensor PID.
• 02S 12
Note
• Heated oxygen sensor displayed as
0 2 S 1 2 (Middle) on NGS tester.
• Heated oxygen sensor (Middle)=Test
Pin 35 and 97
•
Is voltage greater than 1.5 volts?
Yes
Go to step 9.
No
Go to next step.
7
CHECK RESISTANCE OF HEATED OXYGEN
SENSOR GROUND CIRCUIT IN PCM
• Key off.
• PCM connected to breakout box. vehicle
harness disconnected from breakout box.
• Measure the resistance between Test Pin
35 (Middle), 60 (Front RH), 61 (Rear), 87
(Front LH) and Test Pin 91 at breakout box.
•
Is resistance reading less than 5.0
ohms?
Yes
REMOVE breakout box.
RECONNECT PCM.
Go to next step.
No
REPLACE PCM.
REMOVE breakout box.
RECONNECT all components.
o» After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
8
APPLY 12 VOLTS TO SUSPECT HEATED
OXYGEN SENSOR CIRCUIT
• Key off.
• Heated oxygen sensor (middle)
disconnected.
• Jumper power to heated oxygen sensor
signal circuit at vehicle harness connector.
• Key on.
• Access heated oxygen sensor PID and
Monitor.
• 02S 12 PID
• Is PID voltage greater than 1.5 volts?
Yes
REPLACE heated oxygen sensor.
RECONNECT all components.
RESET PCM to completely clear DTCs.
tr
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
No
REPLACE PCM.
RECONNECT all components.
RESET PCM to completely clear DTCs.
w
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
9
CHECK FOR OVER VOLTAGE ON HEATED
OXYGEN SENSOR CIRCUIT IN PCM
• Key on.
• PCM connected to vehicle harness.
• Heated oxygen sensor disconnected.
• Inspect both ends of connect for damaged
or pushed out pins, moisture, corrosion,
loose pins, etc. and service as necessary.
• Measure voltage between PCM ground
Test Pin at heated oxygen sensor vehicle
harness connector and battery negative
post.
• Measure voltage between heated oxygen
sensor signal Test Pin at heated oxygen
sensor vehicle harness connector and
battery negative post.
•
Are voltage readings greater than 1.5
volts?
Yes
REPLACE PCM.
RECONNECT all components.
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
No
REPLACE heated oxygen sensor.
RECONNECT all components.
RESET PCM to completely clear DTCs.
tr
After Repair Procedure
COMPLETE OBD II Drive Mode.
RERUN OBD Test.
0 1 -0 1 B -3 2
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...