LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Geo >> 1994 >> Tracker Base, 1.6 U, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Trouble Code Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Trouble Code Definitions

NOTE: Trouble codes will be recorded at various operating times. Some codes require sensor or switch operation for 5 seconds and others may require longer under certain conditions. Some codes may not set in a service bay operational mode.
TROUBLE CODE IDENTIFICATION

Code Circuit Affected Probable Cause
13 Heated Oxygen Sensor Open Circuit
14 Coolant Temp. Sensor Low Temp. Indicated
15 Coolant Temp. Sensor High Temp. Indicated
21 Throttle Position Sensor Signal Voltage High
22 Throttle Position Sensor Signal Voltage Low
23 Intake Air Temp. Sensor Low Temp. Indicated
24 Vehicle Speed Sensor Incorrect Signal Voltage
25 Intake Air Temp. Sensor High Temp. Indicated
31 (1) MAP Sensor High Voltage Input,
High Vacuum
32 (1) MAP Sensor Low Voltage Input,
Low Vacuum
33 (2) MAF Sensor High Current Input
34 (2) MAF Sensor Low Current Input
41 Ignition Signal No Signal
42 Camshaft Position Sensor No Signal
For 2-3 Seconds
44 Idle Switch Open/Misadjusted
45 Idle Switch Grounded/Misadjusted
51 EGR System Out Of Calibration
52 (2) Fuel System Fuel Leakage Detected
53 (1) Ground Circuit Open
53 (2) ECM Failure Failure Detected
(1) TBI (Federal) models only.
(2) MFI (Calif. & New York) models only.
scientia non olet · About LEMON Manuals