221-326

NOTE
KOEO refers to Key On Engine Off (KOEO)
KOER refers to Key On Engine Running (KOER)
DTC refers to Diagnostic Trouble Code (DTC)
DTCs should be diagnosed in the order they are received.



DTC 221
Spark timing error.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 222
Loss of ignition diagnostic monitor signal-right side.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 223
Loss of dual plug inhibit control.
KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 224
Powertrain control module detected coil 1, 2, 3 or 4 primary circuit failure.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 225
Knock not sensed during dynamic response test KOER.

KOER Hard Code Go to DG1
DG1 - Check Sensor Voltage Cycling

DTC 226
Ignition diagnostic monitor signal not received.

KOEO Hard Code Go to NC2


DTC 232
Powertrain control module detected coil 1, 2, 3 or 4 primary circuit failure.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 238
Powertrain control module detected coil 4 primary circuit failure.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 241
Ignition control module to powertrain control module ignition diagnostic monitor pulsewidth transmission error.

KOEO Memory Code - Go to Ignition System / Testing and Inspection.

DTC 244
Cylinder Identification circuit fault present when cylinder balance test requested.

KOER Hard Code Go to DR1
DR1 - Will Engine Start

DTC 311
Secondary air injection system inoperative during KOER self-test (bank #1).

KOER Hard Code Go to KC1
KC1 - Visually Inspect Vacuum Hoses

DTC 312
Secondary air injection system misdirected during KOER self-test.

KOER Hard Code Go to KC1
KC1 - Visually Inspect Vacuum Hoses

DTC 313
Secondary air injection system not bypassed during KOER self-test.

KOER Hard Code Go to KC1
KC1 - Visually Inspect Vacuum Hoses

DTC 314
Secondary air injection system system inoperative during KOER self-test (bank #2)

KOER Hard Code Go to KC1
KC1 - Visually Inspect Vacuum Hoses

DTC 326
Exhaust Gas Recirculation (EGR) valve pressure sensor circuit voltage lower than expected. This code does not apply to vehicles equipped with EGR Valve Position (EVP) sensors
KOER Hard Code Go to DL20
DL20 - Remove Garage Forced Ventilation

KOEO Memory Code Go to DL90
DL90 - All Continuous Memory EGR DTC: Intermittent Verification