Inspection and Verification
- Verify the customer concern by operating the system.
- Visually inspect for obvious signs of mechanical or electrical damage.
- If an obvious cause for an observed or reported concern is found, correct the cause before proceeding to the next step.
- If the concern is not visually evident, verify the symptom. GO to «SYMPTOM CHART - EXTERNAL CONTROLS»(ref-355741-S30996287682010012800000) or GO to «SYMPTOM CHART - NVH»(ref-355741-S20321478932010012800000) . VISUAL INSPECTION CHART Mechanical Electrical Transmission selector lever cable Manual control lever Selector lever or selector lever knob Paddle shifters Fuse 5 (10A) Connections Wiring harness Brake Pedal Position (BPP) switch Brake Shift Interlock Actuator (BSIA) Transmission Control Switch (TCS) Paddle shifters switches
DTC Chart
| DTC | Component | Description | Condition | Symptom | Action |
|---|---|---|---|---|---|
| B2572 | Brake Shift Interlock Actuator (BSIA) | Brake shift interlock output circuit failure | The associated circuitry connected to the Smart Junction Box (SJB) or fuse, or the SJB itself may have an issue causing a BSIA concern. | BSIA is inoperative or does not operate correctly. | Go To PINPOINT TEST A . |
DTC CHART
Symptom Chart - External Controls
| Condition | Possible Sources | Action |
|---|---|---|
| Brake shift interlock system does not release/lock correctly | Circuitry open/shorted Smart Junction Box (SJB) fuse 5 (10A) Brake Pedal Position (BPP) switch | Go To PINPOINT TEST A . |
| Transmission Control Switch (TCS) does not operate correctly | Instrument Cluster (IC) Circuitry open/shorted PCM TCS | Go To PINPOINT TEST B . |
| Brake shift interlock system does not release/lock correctly | Brake Shift Interlock Actuator (BSIA) | INSTALL a new selector lever assembly. REFER to SELECTOR LEVER . |
| Transmission Range (TR) sensor | DIAGNOSE and REPAIR all TR sensor DTCs. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - 6F50/6F55 . | |
| Selector lever linkage is out of correct gear relationship | Selector lever linkage out of adjustment | REFER to SELECTOR LEVER CABLE ADJUSTMENT . |
| Loose selector lever cable bracket | CHECK the selector lever cable bracket. TIGHTEN as necessary. | |
| Select shift does not operate correctly | Circuitry open/shorted Paddle shifters PCM | Go To PINPOINT TEST C . |
EXTERNAL CONTROLS - SYMPTOM CHART
Symptom Chart - NVH
Note. NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION & HARSHNESS . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION & HARSHNESS for the next likely system and continue diagnosis.
| Condition | Possible Sources | Action |
|---|---|---|
| Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed | Selector lever cable incorrectly routed, grounded out or loose | CHECK the selector lever cable. REPAIR as necessary. |
NVH - SYMPTOM CHART