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Trouble Code Definition

DIAGNOSTIC CODE IDENTIFICATION (1)

Code (2) CHECK ENGINE Light System Affected
12  On RPM
13  On RPM
14  On Ignition
16  On (3) QCT Control
21  On Main Oxygen Sensor or Sensor Heater
22  On Water Temperature Sensor
24  (4) On Intake Air Temperature Sensor
25  On Air/Fuel Ratio Lean Malfunction
26  On Air/Fuel Ratio Rich Malfunction
27  (4) On Sub-Oxygen Sensor
31  On Airflow Meter
32  On Airflow Meter
41  (4) On Throttle Position Sensor
42  Off Vehicle Speed Sensor
43  (5) Off Starter
51  Off Switch Condition
52  On Knock Sensor
53  On Knock Control
71  (4) On EGR System Malfunction
(1) If diagnostic code displayed is not shown in this table, ECU is faulty.
(2) All diagnostic codes except Codes 16, 51 and 53 will remain in ECU memory until erased.
(3) Electronically Controlled Transaxle (ECT).
(4) California vehicles only.
(5) Code 43 sets if vehicle is push-started.
NOTE: Electronically Controlled Transmission (ECT) uses same ECU as EFI system.