4
FAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (79 - 89)
TEST
CODE
CONDITION
79
-
81
O
82
O
82
O
83
O
83
O
83
O, C
83
O
84
O, R
84
O
85
O, R
85
C
85
O
85
O
86
O
86
C
87
O, R, C
87
O
88
O
88
O
88
C
88
O
89
O
Chapter 4
FAULT CODE DEFINITION
(Trucks ONLY): Air conditioner on while
performing test
Air diverter solenoid fault, intake air
control circuit fault / air injection diverter
Air diverter solenoid circuit fault or
supercharger bypass circuit fault
Integrated relay control module
EGR solenoid circuit fault (2.3L MAP)
(Cars ONLY): Cooling fan circuit fault
(Cars ONLY): Low speed fuel pump relay
circuit fault, circuit open (3.0L MAF-SFI)
EVP/EGRC/EGRV
(Cars ONLY): EGR vacuum regulator
circuit failure
(Trucks ONLY): EGR vent fault
(Cars ONLY): Canister Purge Solenoid
circuit failure
(Cars ONLY): Adaptive fuel limit reached -
lean
(Trucks ONLY): Canister purge circuit
failure
Shift solenoid 3/4 - 4/3
Adaptive fuel limit reached or 3-4 shift
solenoid circuit failure
(Cars ONLY): Adaptive fuel limit reached -
rich
(Cars ONLY): Fuel pump primary circuit
fault
(Trucks ONLY): Primary fuel pump circuit
failure
(Cars ONLY): Cooling fan circuit fault
(Trucks ONLY): Choke relay out of range
Dual plug input control failure
Shift solenoid 3/4 - 4/3
AXOD Lock-Up Solenoid (LUS) circuit
failure or Clutch Converter Override (CCO)
circuit failure
Retrieving Codes
54