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Pinpoint Test

  1. CHECK FOR HIGH VOLTAGE Diagnostic Trouble Codes (DTCs) SET IN OTHER MODULES
    1. Ignition ON.
    2. Using a scan tool, retrieve and record all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
      • Is Diagnostic Trouble Code (DTC) B1317, B1318, B1676, U3003:16 or U3003:17 present in one or more modules AND are any charging system Diagnostic Trouble Codes (DTCs) present in the Powertrain Control Module (PCM)? 
      1. Yes:  REFER to DIAGNOSTIC ROUTINE A  to diagnose an overcharging condition.
      2. No:  GO to 2  on page 2.
  2. CHECK THE BATTERY VOLTAGE
    1. Turn off all interior/exterior lights and accessories.
      2. NOTE: Do not allow the engine speed to increase above 2,000 Revolutions Per Minute (RPM) while performing this step or the generator may self-excite and result in default charging system output voltage. If engine speed goes above 2,000 Revolutions Per Minute (RPM), turn the vehicle off and restart the engine before performing this step.
    2. Start and run the engine at approximately 1,500 Revolutions Per Minute (RPM) for 3 minutes while monitoring the battery voltage.
      • Is the battery voltage between 13 and 15.2 volts? 
      1. Yes:  GO to 3  on page 2.
      2. No:  REFER to DIAGNOSTIC ROUTINE A  to diagnose an overcharging condition.
  3. RECHECK THE Anti-Lock Brake System (ABS) MODULE FOR Diagnostic Trouble Code (DTC) U3003:17
    1. Turn the engine off.
    2. Ignition ON.
    3. Using a scan tool, carry out the Anti-Lock Brake System (ABS) module self-test.
    4. Clear the Anti-Lock Brake System (ABS) module Diagnostic Trouble Codes (DTCs).
    5. Ignition OFF.
    6. Ignition ON.
    7. Repeat the Anti-Lock Brake System (ABS) module self-test.
      • Is Diagnostic Trouble Code (DTC) U3003:17 still present? 
      1. Yes:  GO to 4  on page 2.
      2. No:  The system is operating normally at this time. The Diagnostic Trouble Code (DTC) may have been set previously during battery charging or while jump starting the vehicle.
  4. CHECK FOR CORRECT Anti-Lock Brake System (ABS) MODULE OPERATION
    1. Ignition OFF.
    2. Disconnect and inspect the Anti-Lock Brake System (ABS) Module electrical connector.
    3. Repair:
      • corrosion (install new connector or terminal - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    4. Connect the Anti-Lock Brake System (ABS) Module electrical connector. Make sure it seats and latches correctly.
    5. Operate the system and determine if the concern is still present.
      • Is the concern still present? 
      1. Yes:  CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW the Technical Service Bulletin (TSB) instructions.

        If no Technical Service Bulletins (TSBs) address this concern and the vehicle is not equipped with adaptive cruise control, INSTALL a new Anti-Lock Brake System (ABS) module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE .

        If no Technical Service Bulletins (TSBs) address this concern and the vehicle is equipped with adaptive cruise control, INSTALL a new Anti-Lock Brake System (ABS) module and Hydraulic Control Unit (HCU). REFER to HYDRAULIC CONTROL UNIT (HCU) .

      2. No:  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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