TSB : Pinpoint Test K: DTC U0100

Details

K1 VERIFY THE SCAN TOOL COMMUNICATES WITH THE PCM Connect the scan tool. Verify that a vehicle session can be established using the scan tool. Can a vehicle session be established? Yes : GO to K2. No : REFER to MODULE COMMUNICATIONS NETWORK to diagnose no communication with the PCM. K2 CHECK THE ABS MODULE CONTINUOUS MEMORY DTCs Ignition ON. Enter the following diagnostic mode on the scan tool: Self Test - ABS Module. Clear the DTCs. Wait 10 seconds. Repeat the ABS module self-test. Is DTC U0100 retrieved again? Yes : GO to K3. No : The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. K3 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST Check for recorded DTCs from the PCM Key ON Engine OFF (KOEO) self-test. Is DTC P0562 or P0563 recorded? Yes : REFER to ELECTRONIC ENGINE CONTROLS - GASOLINE ENGINES or ELECTRONIC ENGINE CONTROLS - DIESEL ENGINES . No : GO to K4. K4 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE SELF-TEST Check for recorded DTCs from the ABS module self-test. Is DTC B1317 or DTC B1318 recorded? Yes : For DTC B1317, GO to PINPOINT TEST A . For DTC B1318, GO to PINPOINT TEST B . No : GO to K5. K5 CHECK FOR DTC U0100 SET IN OTHER MODULES Ignition ON. Enter the following diagnostic mode on the scan tool: Self-Test - All CMDTCs. Retrieve the CMDTCs from all modules. Is DTC U0100:87 set in the Remote Function Actuator (RFA) module (if equipped) or DTC U0100:00 in the Restraints Control Module (RCM)? Yes : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS - GASOLINE ENGINES or ELECTRONIC ENGINE CONTROLS - DIESEL ENGINES . TEST the system for normal operation. No : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . TEST the system for normal operation.