|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record FREEZE FRAME DATA on the repair order, then go to the next step.
|
|
2
|
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
|
Yes
|
Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
|
|
No
|
Go to the next step.
|
|
3
|
INSPECT FOR POWER SUPPLY IN WIRING HARNESS
• Disconnect the suspect HO2S connector.
• Perform the KOEO self-test.
• Measure the voltage between the suspect HO2S connector terminal A and C, on the wiring harness side.
• Is the voltage more than 10 V?
|
Yes
|
Turn the ignition switch off. Go to the next step.
|
|
No
|
Repair or replace suspected part, then go to step 9.
|
|
4
|
INSPECT HO2S HEATER FOR SHORT TO GROUND
• Disconnect the PCM.
• Measure the resistance between HO2S connector terminal A, the wiring harness side, and body ground.
• Is the resistance more than 10 kilohms?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace suspected part. Go to Step 9
|
|
5
|
INSPECT HO2S HEATER FOR SHORT IN WIRING HARNESS
• Measure the resistance between the following terminals:
-
― HO2S terminal A (wiring harness-side) and HO2S terminal C (wiring harness-side)
― HO2S terminal A (wiring harness-side) and HO2S terminal D (wiring harness-side)
― HO2S terminal A (wiring harness-side) and HO2S terminal B (wiring harness-side)
• Are the resistances more than 10 kilohms?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace suspected part. Go to Step 9
|
|
6
|
INSPECT HO2S HEATER CIRCUIT FOR OPEN CIRCUIT IN WIRING HARNESS
• For DTC P0053 Measure resistance between PCM terminal 2J and front HO2S (RH) terminal A.
• For DTC P0054 Measure resistance between PCM terminal 2AS and rear HO2S (RH) terminal A.
• For DTC P0059 Measure resistance between PCM terminal 2E and front HO2S (LH) terminal A.
• For DTC P0060 Measure resistance between PCM terminal 2AO and rear HO2S (LH) terminal A.
• Is the resistance less than 5.0 ohms?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace suspected part. Go to Step 9.
|
|
7
|
INSPECT INTERNAL RESISTANCE OF HO2S HEATER
• Measure the resistance between the suspect HO2S terminal A and C on the component side.
• Is the resistance between 3—30 ohms?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the HO2S.
Go to Step 9.
|
|
8
|
INSPECT HO2S CASE FOR SHORT TO POWER SUPPLY, HTR, AND SIGNRTN
• Measure the resistance between the suspect HO2S terminal A and D on the component side.
• Measure the resistance between the suspect HO2S terminal A and body ground.
• Is the resistance more than 10 kilohms?
|
Yes
|
Replace the PCM. Go to the next step.
|
|
No
|
Replace the HO2S.
Go to the next step.
|
|
9
|
VERIFY TROUBLESHOOTING OF DTC P0053, P0054, P0059 or P0060 HAS BEEN COMPLETED
• Verify that all disconnected connectors reconnected.
• Turn the ignition switch to the ON position (Engine off).
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and run it at idle.
• Retrieve DTCs using the M-MDS.
• Is the PENDING CODE for this DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
|
10
|
VERIFY AFTER REPAIR PROCEDURE
• Perform “AFTER REPAIR PROCEDURE”.
• Are any DTC present?
|
Yes
|
Go to the applicable DTC inspection.
|
|
No
|
Troubleshooting completed.
|
