TROUBLESHOOTING [ENGINE CONTROL FS]
DTC
P0135
P0141
Heated oxygen sensor heater (Front) (HTR 11) circuit malfunction
Heated oxygen sensor heater (Rear) (HTR 12) circuit malfunction
DESCRIPTION
• DTC P0135 and P0141 indicate short to ground, or open, or short to power circuit in
heated oxygen sensor heater circuit
[Possible Cause]
• Shorts to B+ in harness or heated oxygen sensor
• Open ground circuit
• W ater in connectors
• Low battery positive voltage
• Cut or pulled wires
• Corrosion or poor mating terminals
• Disconnected wiring
• Damaged heated oxygen sensor heater
• Open heated oxygen sensor heater power circuit
• Damaged PCM
STEP
INSPECTION
ACTION
1
HEATED OXYGEN SENSOR HEATER
SIGNAL CIRCUIT IS OPEN, SHORTED TO
GROUND, SHORTED TO B+ OR
EXCESSIVE CURRENT DRAW
Heated oxygen sensor reference list
DTC P0135=Heated oxygen sensor heater
(Front)
DTC P0141=Heated oxygen sensor heater
(Rear)
• Visually inspect heated oxygen sensor
circuit for exposed wiring, contamination,
corrosion and proper assembly.
Note
• On some applications, vehicle hoist may be
required to access heated oxygen sensor
harness.
•
Were any concerns found during visual
inspection?
Yes
SERVICE any concerns found in the visual inspection.
RESET PCM to completely clear DTCs.
c r After Repair Procedure
COMPLETE a OBD II Drive Mode.
RERUN OBD Test.
No
Go to next step.
2
PERFORM KOEO SELF TEST
• Key off.
• NGS tester connected.
• Key on, engine on.
• Engine at 2,000 rpm for
1
minute.
• Key off.
• Key on, engine off.
• Perform KOEO self-test.
•
Are DTCs P0135 and/or P0141 present?
Yes
Go to next step.
No
Fault may be intermittent.
Intermittent poor connection or component malfunction
(SERVICE or REPLACE as necessary).
Go to ENGINE SYMPTOM TROUBLESHOOTING No.27
3
CHECK FOR POWER AT VEHICLE HEATED
OXYGEN SENSOR HARNESS
CONNECTOR
• Key off.
• Disconnect appropriate heated oxygen
sensor(s).
• Inspect both ends of connector(s) for
damaged or pushed out pins, moisture,
corrosion, contamination, etc. Repair as
necessary.
• Key on, engine off.
• Measure voltage between power and
ground circuit at heated oxygen sensor
vehicle harness connector.
• Is voltage greater than 10.5 volts?
Yes
Go to step 5.
No
Go to next step.
0 1 -0 1 A -2 8
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...