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PINPOINT TEST H : Incorrect Speedometer Indication

  1. H1 CHECK THE TIRE SIZE CONFIGURATION

    • The correct tire size can be found on the VC label on the LH B-pillar. VC Codes.
    • Using the scan tool, view Module Programming for the programmed tire size.
    • Verify that the tire size configuration matches the VC label.

    Is the tire size correctly configured? 

    Yes  GO to  H2.
    No  CONFIGURE the correct tire size as required.

  2. H2 CHECK THE AXLE RATIO CONFIGURATION

    • Using the scan tool, view Module Programming for the programmed axle ratio.
    • Verify the axle ratio is correctly configured.

    Is the axle ratio correctly configured? 

    Yes  GO to  H3.
    No  CONFIGURE the correct axle ratio.

  3. H3 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST

    • Using a scan tool, perform the PCM KOEO self-test.

    Are any DTCs recorded? 

    Yes  REFER to ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID) .
    No  GO to  H4.

  4. H4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

    • Using a scan tool, perform the IPC self-test.

    Are any DTCs recorded? 

    Yes  For DTC U0100:00, GO to Pinpoint Test AR . For all other DTCs, REFER to DTC Chart: IPC .
    No  GO to  H5.

  5. H5 CARRY OUT THE SPEEDOMETER ACTIVE COMMAND USING THE SCAN TOOL

    • Ignition ON.
    • Using a scan tool, view the IPC PIDs.
    • Select the IPC speedometer (SPDOMETER) PID. Command the speedometer in 10% increments while monitoring the speedometer. The speed indicated should increase according to the following tables:
      Command  Indication Range 
      10% (23 km/h (14 mph)) 23 km/h (14 mph)-24 km/h (15 mph)
      20% (45 km/h (28 mph)) 44 km/h (27 mph)-48 km/h (30 mph)
      30% (67 km/h (42 mph)) 66 km/h (41 mph)-72 km/h (45 mph)
      40% (90 km/h (56 mph)) 87 km/h (54 mph)-97 km/h (60 mph)
      50% (113 km/h (70 mph)) 109 km/h (68 mph)-121 km/h (75 mph)
      60% (135 km/h (84 mph)) 130 km/h (81 mph)-145 km/h (90 mph)
      70% (158 km/h (98 mph)) 153 km/h (95 mph)-169 km/h (105 mph)
      80% (180 km/h (112 mph)) 175 km/h (109 mph)-193 km/h (120 mph)
      90% (203 km/h (126 mph)) 196 km/h (122 mph)-217 km/h (135 mph)
      100% (225 km/h (140 mph)) 219 km/h (136 mph)-241 km/h (150 mph)

      Late Build Police Only 

      Command  Indication Range 
      10% (26 km/h (16 mph)) 26 km/h (16 mph)-27 km/h (17 mph)
      20% (51 km/h (32 mph)) 50 km/h (31 mph)-55 km/h (34 mph)
      30% (77 km/h (48 mph)) 76 km/h (47 mph)-82 km/h (51 mph)
      40% (103 km/h (64 mph)) 100 km/h (62 mph)-109 km/h (68 mph)
      50% (129 km/h (80 mph)) 126 km/h (78 mph)-138 km/h (86 mph)
      60% (154 km/h (96 mph)) 150 km/h (93 mph)-166 km/h (103 mph)
      70% (180 km/h (112 mph)) 175 km/h (109 mph)-193 km/h (120 mph)
      80% (206 km/h (128 mph)) 200 km/h (124 mph)-220 km/h (137 mph)
      90% (232 km/h (144 mph)) 225 km/h (140 mph)-248 km/h (154 mph)
      100% (257 km/h (160 mph)) 249 km/h (155 mph)-275 km/h (171 mph)

    Does the speed indicated increase within the specified range? 

    Yes  GO to  H6.
    No  Refer to IPC Hardware Testing .

  6. H6 CHECK THE PCM VSS PID

    • Using a scan tool, view the PCM PIDs.
    • Select and monitor the PCM vehicle speed (Vehicle Speed Sensor (VSS)) PID with the speedometer indicating 32.2 km/h (20 mph), 64.4 km/h (40 mph) and 96.6 km/h (60 mph).

    Does the speedometer indicate between 30.6 km/h (19 mph)-33.8 km/h (21 mph), 62.8 km/h (39 mph)-69.2 km/h (43 mph) and 93.3 km/h (58 mph)-103 km/h (64 mph) at the 3 PCM PID values? 

    Yes  GO to  H7.
    No  Refer to IPC Hardware Testing .

  7. H7 OBSERVE THE SPEEDOMETER OPERATION

    • Ignition ON.
    • Observe the speedometer with the vehicle at various wheel speeds and stopping frequently.

    Does the speedometer begin at 0 km/h (0 mph) and fully return to the 0 km/h (0 mph) position when the wheels are stopped? 

    Yes  The speedometer is operating correctly at this time.
    No  Refer to IPC Hardware Testing .
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