Diagnostic Test
- Active DTC NOTE:
High Resistance, Opens, Or Shorts In Any Fuel Injector Circuits Will Cause This DTC To Set, But May Not Set A Fuel Injector Circuit DTC. Always Check Fuel Injector Circuits Before Replacing The Powertrain Control Module. Pay Special Attention To The Valve Cover Gasket Molded In Injector Harness.
- Ignition On, Engine Not Running.
- With The Scan Tool Check For Active DTCS.
Is The DTC Active?
Yes
- Go To 2
No
- Perform The INTERMITTENT CONDITION Diagnostic Procedure. Refer To INTERMITTENT CONDITION .
- Fuel Injector Circuit DTCS
- Ignition On, Engine Not Running.
- With The Scan Tool, Read DTCS.
Are There Any Fuel Injector Circuit DTCS Present?
Yes
- Repair The Fuel Injector Circuit DTCS Before Proceeding.
- Perform The POWERTRAIN VERIFICATION TEST. Refer To POWERTRAIN VERIFICATION TEST .
No
- Go To 3
- INTERMITTENT CONDITION
- Ask Customer If The Truck Was Stalled At Key Off Shortly Before The Etc Lamp Started Flashing.
Was The Truck Stalled At A Recent Key Off Event?
Yes
- Explain Diagnostic To Customer. Repair Complete.
No
- Go To 4
- Ask Customer If The Truck Was Stalled At Key Off Shortly Before The Etc Lamp Started Flashing.
- Powertrain Control Module NOTE:
High Resistance, Opens Or Shorts In Any Fuel Injector Circuits Will Cause This DTC To Set, But May Not Set A Fuel Injector Circuit DTC. Always Check Fuel Injector Circuit Wiring Before Replacing The Powertrain Control Module. Pay Special Attention To The Valve Cover Gasket Molded In Injector Harness.
- Investigate Truck For Signs Of A Performance Enhancement Kit.
Are There Signs That The Customer Has Used A Performance Enhancement Kit?
Yes
- Repair Complete. Return Vehicle To Owner.
No
- Replace The Powertrain Control Module In Accordance With The Service Information.
- Perform The POWERTRAIN VERIFICATION TEST. Refer To POWERTRAIN VERIFICATION TEST .
- Investigate Truck For Signs Of A Performance Enhancement Kit.