Manual

You Can Do It!
ii
1
Look up the Code Retrieval information for
your vehicle
Follow the step-by-step instructions.
2
Read Diagnostic Trouble
Codes
The codes are displayed by
either the “Check Engine” light
or at the vehicles computer.
3
Locate Problem Areas
Look up fault code descriptions
in the Fault Code Definition
list.
CHECK ENGINE
1
11)
Possible Cause
ri
ght side
Open or shorted signal circuit,
high O2 signal
Open signal in trans. Control unit
lt
s / no malfunctions
6
cylinder misfire Wiring, fuel or ignition system,
ECM
No. 5 cylinder misfire Wiring, fuel or ignition system,
ECM
65 No. 4 cylinder misfire Wiring, fuel or ignition system,
ECM
66 No. 3 cylinder misfire Wiring, fuel or ignition system,
ECM
67 No. 2 cylinder misfire Wiring, fuel or ignition system,
ECM
68 No. 1 cylinder misfire Wiring, fuel or ignition system,
ECM
71 Random misfire Wiring, fuel or ignition system,
ECM
72 TWC function RH bank Catalytic converter, wiring, ECM
73 TWC function LH bank Catalytic converter, wiring, ECM
76 Fuel injection system function RH Wiring, injector, oxygen sensor
bank
77 Rear HO2S circuit Wiring, injector, oxygen sens
or
82 CKP sensor Wiring, CKP sensor, EC
M
84 A/T diagnosis communication line Wiring, ECM
85 CMP actuator - circuit malfunction Wiring, CMP sens
or
86 Fuel injection system function LH Wiring, oxygen
s
bank
87 Canister control solenoid valve Wiring,
EV
circuit
91 Front HO2S heater circuit RH bank W
iri
9
4 TCC solenoid valve
W
CKP sensor
EC
T sensor
t
HO2S heater circu
it
ns
or circuit
r
circ
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