Specifications

ON-BOARD DIAGNOSTIC
F113
F
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes Go to next step.
No Record FREEZE FRAME DATA on repair order, then go to
next step.
2 VERIFY RELATED SERVICE INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related Service Information available?
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to next step.
No Go to next step.
3 VERIFY RELATED PENDING OR STORED
DTCS
• Turn ignition key to OFF, then ON (Engine
OFF).
• Verify pending code or stored DTCs using
WDS or equivalent.
• Is other DTC present?
Yes Go to appropriate DTC troubleshooting procedures.
(See F67 DTC TABLE.)
No Go to next step.
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME
DATA
• Is DTC P0138 on FREEZE FRAME DATA?
Yes Go to next step.
No Go to troubleshooting procedures for DTC on FREEZE
FRAME DATA.
(See F67 DTC TABLE.)
5 INSPECT REAR HO2S SIGNAL CIRCUIT FOR
SHORT TO POWER SUPPLY CIRCUIT
• Turn ignition key to OFF.
• Disconnect rear HO2S connector.
• Turn ignition key to ON (Engine OFF).
• Measure voltage between rear HO2S terminal
A (harness-side) and body ground.
• Is any voltage reading?
Yes Replace short to power supply circuit, then go to Step 7.
No Go to next step.
6 VERIFY CURRENT INPUT SIGNAL STATUS
• Start engine.
• Access O2S12 PID using WDS or equivalent.
• Verify PID while racing engine at least 10
times (in NEUTRAL (MTX) or PARK (ATX)).
• Does PID reading stay above 0.45 V?
Yes Repair or replace sensor, then go to next step.
No Go to next step.
DTC P0138 Rear HO2S circuit high input