GM Import / GEO >> 95 Geo Tracker 1.6L

95 Geo Tracker

Federal

PROCEDURE

 

  1. Locate the duty check data link connector in the RH rear engine compartment near the battery.
  2. Ground terminal B of the connector (blue/yellow wire) to terminal C of the connector (black ground wire).
  3. Turn the ignition key to the ON position, and observe the Malfunction Indicator Lamp (MIL) .
  4. The MIL will begin to flash a code 12 continuously, if no other DTC’s are stored. If other codes are stored they will be flashed in sequence from the smallest to the largest beginning with Code 12.

California

PROCEDURE

  1. Locate the duty check data link connector in the RH rear engine compartment near the battery.
  2. Ground terminal 2 of the connector (blue/yellow wire) to terminal 4 of the connector (black ground wire).
  3. Turn the ignition key to the ON position, and observe the Malfunction Indicator Lamp (MIL) .
  4. The MIL will begin to flash a code 12 continuously, if no other DTC’s are stored. If other codes are stored they will be flashed in sequence from the smallest to the largest beginning with Code 12.
95 Geo Tracker 1.6L

DTC 13

Heated Oxygen Sensor (H02S) Circuit

DTC 14

Engine Coolant Temperature (ECT) Circuit (High Voltage)

DTC 15

Engine Coolant Temperature (ECT) Circuit (Low Voltage)

DTC 21

Throttle Position Sensor (TPS) Circuit (High Voltage)

DTC 22

Throttle Position Sensor (TPS) Circuit (Low Voltage)

DTC 23

Intake Air Temperature (IAT) Circuit (High Voltage)

DTC 24

Vehicle Speed Sensor (VSS) Circuit

DTC 25

Intake Air Temperature (IAT) Circuit (Low Voltage)

DTC 31

Manifold Absolute Pressure (MAP) Sensor Circuit (High Voltage)

DTC 32

Manifold Absolute Pressure (MAP) Sensor Circuit (Low Voltage)

DTC 41

Ignition Signal Circuit (No Signal)

DTC 42

Camshaft Position (CMP) Sensor (No Signal for 2 seconds)

DTC 44

Idle Switch Circuit (Circuit Open or Misadjusted)

DTC 45

Idle Switch Circuit (Circuit Grounded or Misadjusted)

DTC 51

Exhaust Gas Recirculation (EGR) Circuit

DTC 53

Ground Circuit (Circuit Open)

 

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Ron
Ron
2 years ago

remember the clear code switch must be in the right side its brighter when right then you will get the codes
the switch is behind and to the right after remove of left front dash speaker. hope this helps

Jonathan everhart
Jonathan everhart
2 years ago

What if it won’t even flash the 12 code it just stays on. No flashing at all

Craig Barter
Craig Barter
4 years ago

Hi, my 95, with both procedures will not retrieve codes. The mil light just stays constant. Also, on the 4 plug procedure, my ground terminal is a green wire, bot a black. Any help is appreciated. I really wish I could find out what’s wrong with my tracker.

95 geo 1.6 16v

Wayne
Wayne
5 years ago

Not sure if my code is a 13 or a 31 how do I tell is the smallest number the first

Crystal Grey
Crystal Grey
4 years ago
Reply to  Wayne

If it flash once then pause with 3 flashes then its 13
If 3 flashes then a pause and flash once its 31 it will be a long pause and it will do it again.