B1784

B1784-STOP LAMP CONTROL CIRCUIT LOW






For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:
- With the Stop Lamps activated.
- Set Condition:
- When the TIPM detects a LOW condition.






Diagnostic Test

1. INTERMITTENT CONDITION

Turn the ignition on.

With the Scan Tool, clear all TIPM DTC's.

Turn the Stop Lamps on.

With the Scan Tool read the DTC information.

Does the Scan Tool read: B1784-STOP LAMP CONTROL CIRCUIT LOW?

Yes

- Go To 2

No

- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. (L50) BRAKE LAMP SWITCH OUTPUT CIRCUIT SHORTED TO GROUND





Turn the ignition off.

Disconnect the TIPM C6 harness connector.

Disconnect the Left and Right Rear Tail Lamp harness connectors.

Measure the resistance between ground and the (L50) Brake Lamp Switch Output circuit.

Is the resistance below 5.0 ohms?

Yes

- Repair the (L50) Brake Lamp Switch Output circuit for a short to ground.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test