111-128

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.



No DTCs OUTPUT OR DTCs NOT LISTED
KOEO self-test QA1
QA1 - Check VREF Voltage At Self-Test Connector

KOEO self-test QA1
QA1 - Check VREF Voltage At Self-Test Connector


DTC 111
System Pass.

DTC 112
Intake Air Temperature sensor circuit below minimum voltage, 254 degrees F indicated.

KOEO Hard Code Go to DA20
DA20 - Induce DTC 118 or 113

KOEO Memory Code Go to DA90
DA90 - Check Sensor

DTC 113
Intake air temperature sensor circuit above maximum voltage/ -4O degrees F indicated.

KOEO Hard Code Go to DA10
DA10 - Induce DTC 117 or 112

KOEO Memory Code Go to DA90
DA90 - Check Sensor


DTC 114
Intake air temperature higher or lower than expected.

KOEO Hard Code Go to DA1
DA1 - Check ECT or IAT Sensor

KOER Hard Code Go to DA1
DA1 - Check ECT or IAT Sensor

DTC 116
Engine coolant temperature higher or lower than expected.

KOEO Hard Code Go to DA1
DA1 - Check ECT or IAT Sensor

KOER Hard Code Go to DA1
DA1 - Check ECT or IAT Sensor

DTC 117
Engine coolant temperature sensor circuit below minimum voltage 254 degrees F indicated.

KOEO Hard Code Go to DA20
DA20 - Induce DTC 118 or 113

KOEO Memory Code Go to DA90
DA90 - Check Sensor

DTC 118
Engine coolant temperature sensor circuit above maximum voltage/ -40 degrees F indicated.

KOEO Hard Code Go to DA10
DA10 - Induce DTC 117 or 112

KOEO Memory Code Go to DA90
DA90 - Check Sensor

DTC 121
Closed throttle voltage higher or lower than expected. Indicates throttle position voltage inconsistent with the mass air flow sensor.

KOEO Hard Code Go to DH2
DH2 - Check For Stuck Throttle Plate

KOER Hard Code Go to DH1
DH - Throttle Position (TP) Sensor

KOEO Memory Code Go to G1
G1 - Check for Idle Air DTCs: Initiate KOER Self-Test

DTC 122
Throttle position sensor circuit below minimum voltage.

KOEO Hard Code Go to DH10
DH10 - Attempt to Generate DTC 123 or 121

KOEO Memory Code Go to DH94
DH94 - Monitor TP Circuit Under Simulated Road Shock

DTC 123
Throttle position sensor circuit above maximum voltage.

KOEO Hard Code Go to DH3
DH3 - Attempt to Generate DTC 122

KOEO Memory Code Go to DH90
DH90 - Monitor TP Circuit Under Simulated Road Shock

DTC 124
Throttle position sensor voltage higher than expected.

KOEO Memory Code Go to G1
G1 - Check for Idle Air DTCs: Initiate KOER Self-Test

DTC 125
Throttle position sensor voltage lower than expected.

KOEO Memory Code Go to G1
G1 - Check for Idle Air DTCs: Initiate KOER Self-Test

DTC 126
Manifold absolute pressure or barometric pressure sensor higher or lower than expected.

KOEO Hard Code Go to DF1
DF1

KOER Hard Code Go to DF1
DF1

KOEO Memory Code Go to DF90
DF90

DTC 128
Manifold absolute pressure sensor vacuum hose damaged or disconnected.

KOEO Memory Code Go to DF11
DF11