Workshop Manual

6E–202
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0153 – HO2S Slow Response Bank 2 Sensor 1
Step Action Value(s) Yes No
1 Was the “On-Board Diagnostic (OBD) System Check”
performed?
— Go to Step 2
Go to OBD
System
Check
2 NOTE: If any DTCs are set, (except P0133, P1133,
P1134, P1153, and/or P1154), refer to those DTCs
before proceeding with this diagnostic chart.
1. Install the Tech 2.
2. Idle the engine at operating temperature.
3. Operate the vehicle within parameters specified
under “Conditions for Setting the DTC” criteria
included in Diagnostic Support.
4. Using a Tech 2, monitor “DTC” info for DTC P0153
until the DTC P0153 test runs.
5. Note the test result.
Does the Tech 2 indicate DTC P0153 failed this
ignition?
— Go to Step 3
Refer to
Diagnostic
Aids
3 Did the Tech 2 also indicate DTC P0153, P1133,
P1134, P1153, and/or P1154 test failed this ignition?
— Go to Step 17 Go to Step 4
4 Check for leaks at the pipe joints.
Are the joints leaking?
— Go to Step 5 Go to Step 6
5 Tighten the U-bolt nuts at the leaking joint.
Is your action complete?
— Go to Step 2 —
6 Check for gaskets that are damage or improperly
installed.
Are there damaged or misaligned gaskets?
— Go to Step 7 Go to Step 8
7 1. Replace the damaged gaskets.
2. Align the connections.
3. Tighten the connections.
Is your action complete?
— Go to Step 2 —
8 Check for loose exhaust flange connections.
Are the flange connections loose?
— Go to Step 9 Go to Step 10
9 Tighten the stud nuts or bolts to specifications.
Is your action complete?
— Go to Step 2 —
10 Check for burned or corroded exhaust pipes.
Are the exhaust pipes burned or corroded?
— Go to Step 11 Go to Step 12
11 Replace the exhaust pipes, as required.
Is your action complete?
— Go to Step 2 —
12 Check for leaks at the exhaust manifold.
Are there leaks at the exhaust manifold?
— Go to Step 13 Go to Step 14
13 Tighten the bolts to specifications or replace the
manifold if necessary.
Is your action complete?
— Go to Step 2 —