Trouble Shooting: Notes
DPMS control unit includes self-diagnostics, which records up to 5 circuit-related problems. Diagnostic trouble codes may be retrieved from DPMS to aid in trouble shooting. Memory switch is used to display any stored trouble codes. Trouble shoot DPMS in specific order only as follows:
- Check power and ground circuits. See Fig 1-Fig 3 .
- Perform automatic adjustment mode operations. See AUTOMATIC ADJUSTMENT MODES.
- Locate appropriate flow chart based on symptom. See SYMPTOM TROUBLE SHOOTING table. See appropriate system test flow chart under SYSTEM TESTS .
- Retrieve trouble codes and perform test steps in appropriate flow chart(s). See RETRIEVING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM.
- Test components and replace as necessary. See COMPONENT TESTS and REMOVAL & INSTALLATION .
NOTE:
Make all voltage checks with connectors attached. Make all continuity checks with connectors disconnected. Use care when backprobing to prevent electrical shorts or damage to insulation and terminals. All connectors are shown from the wire side.