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Diagnostic Monitoring Test Results

The purpose of this test mode is to allow access to the results of OBD II monitor diagnostic test results. The test values that are stored at the time of the particular monitor completion are displayed when the particular test identification is requested. Refer to the following table for test information.

DIAGNOSTIC MONITORING TEST RESULTS

Module ID h(1) Test ID h(1) Component ID h(1) Test Description
      Oxygen Sensor Monitor (01-0F) 
10 01 11 Sensor Voltage Amplitude-Bank 1, Sensor 1
10 01 21 Sensor Voltage Amplitude-Bank 2, Sensor 1
10 02 11 Upstream Static Shift, Lean Shift on EGO11
10 02 11 Upstream Static Shift, Rich Shift on EGO11
10 02 21 Upstream Static Shift, Lean Shift on EGO21
10 02 21 Upstream Static Shift, Rich Shift on EGO21
10
10		 03
03		 01
02		 Upstream Switchpoint
Downstream Switchpoint
      Catalyst Monitor (10-1F) 
10 10 11 Rear to Front Switch Ratio Test-Bank 1 test
10 10 21 Rear to Front Switch Ratio Test-Bank 2 test
      Evaporative Monitor (21-2F) 
10 21(2) 00 Fuel Tank Pressure test-Low
10 21 (2) 00 Fuel Tank Pressure test-High
10 22 (2) 00 Evap-Phase 2 change in pressure test
10 23 (2) 00 Evap-Phase 4 change in pressure too large
10 24 (2) 00 Evap-Phase 4 change in pressure too small
10 25 (2) 00 Evap-Phase 4 pressure build test-upper limit
10 26 00 Phase 0 initial tank vacuum and minimum limit
10 26 00 Phase 0 initial tank vacuum and maximum limit
10 27 00 Phase 2 0.040" cruise leak check vacuum bleed-up and max 0.04" leak threshold
10 28 00 Phase 2 0.020" cruise leak check vacuum bleed-up and max leak threshold
10 29 00 EVAP-Phase 4 change in pressure too small
10 2A 00 Phase 4 vapor generation maximum change in pressure and maximum threshold
10 2B 00 Phase 4 vapor generation maximum absolute pressure rise and maximum threshold
10 2C 00 Phase 2 0.020" idle leak check vac bleed-up and max leak threshold
10 2D 00 Phase 2 0.020" idle leak check vacuum bleed-up and max no-leak threshold
      Secondary Air Monitor (30-3F) 
10 30 11 O2S11 rich during flow test
10 30 21 O2S21 rich during flow test
10 30 12 O2S12 rich during flow test
10 31 00 O2Ss lean timer test
10 31 01 O2Ss lean timer test
      EGR System Monitor (41-4F) 
10 41 (2) 11 Upstream hose disconnected test
10 41 (2) 12 Downstream hose disconnected test
10 45 20 Stuck Open Valve Test
10 49 30 EGR Flow Test
10 4B 30 Flow test
Misfire Monitor (51-5F) 
10 50 00 Total Misfires that exceeded threshold
10 53 01 Misfire rate per 200 revs for Cylinder 1/Type A
10 53 02 Misfire rate per 200 revs for Cylinder 2/Type A
10 53 03 Misfire rate per 200 revs for Cylinder 3/Type A
10 53 04 Misfire rate per 200 revs for Cylinder 4/Type A
10 53 05 Misfire rate per 200 revs for Cylinder 5/Type A
10 53 06 Misfire rate per 200 revs for Cylinder 6/Type A
10 53 07 Misfire rate per 200 revs for Cylinder 7/Type A
10 53 08 Misfire rate per 200 revs for Cylinder 8/Type A
10 53 09 Misfire rate per 200 revs for Cylinder 9/Type A
10 53 0A Misfire rate per 200 revs for Cylinder 10/Type A
10 54 00 Highest misfire rate in 200 rev test/Type A
10 55 00 Highest misfire rate in 1000 rev test/Type B
10 56 00 Misfire monitor trip complete test
(1) hexadecimal
(2) These test IDs are signed values. Scan tool may display them as unsigned.

The conversion is done as follows:

If the value is > 32767 then complement (change 0's to 1's and 1's to 0's), add 1 and a negative sign.

Example:

50000 = 1100001101010000
Complement of 50000 = 0011110010101111
+1
  0011110010110000
Signed Value = -15536
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