Pinpoint Test G: DTC U0001

G1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
- Is an observable symptom present?
- Yes : GO to G2.
- No : The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
G2 CHECK THE COMMUNICATION NETWORK
- Connect the scan tool.
- Ignition ON.
- Using a scan tool, carry out the Network Test.
- Does the RCM pass the Network Test?
- Yes : GO to G3.
- No : REFER to MODULE COMMUNICATIONS NETWORK .
G3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE AND RCM MODULE SELF-TESTS
- Enter the following diagnostic mode on the scan tool: Self-Test - ABS Module.
- Enter the following diagnostic mode on the scan tool: Self-Test - RCM.
- Is DTC B1676 or DTCs B1317 or B1318 present?
- Yes : For the ABS module DTC B1676, GO to PINPOINT TEST B .
  For the RCM DTCs B1317 or B1318, REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- No : GO to G4.
G4 RECHECK THE ABS MODULE DTCs
- Using a scan tool, clear the ABS module DTCs.
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Repeat the ABS module self-test.
- Is DTC U0151 still present?
- Yes : GO to G5.
- 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.
G5 CHECK FOR DTCs U0151 OR U0151:00 SET IN OTHER MODULES
- Using the scan tool, clear all CMDTCs.
- Ignition OFF.
- Ignition ON.
- Wait 10 seconds.
- Enter the following diagnostic mode on the scan tool: Self-Test - All CMDTCs.
- Is DTC U0151 or DTC U0151:00 set in more than one module?
- Yes : INSTALL a new RCM. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . TEST the system for normal operation. CLEAR the DTCs. REPEAT the ABS module self-test
- No : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this information. TEST the system for normal operation.