Electronic Stability Program

DTC C1016: Brake Light Switch Circuit Failure

Wiring Diagram










DTC Detecting Condition and Trouble Area






DTC Troubleshooting

1.
Was "Electronic Stability Program Check" performed?
YES -
Go to Step 2.
NO -
Go to (ESP) Check Electronic Stability Program Check.

2. Check brake light switch circuit

Check brake light, brake light (brake pedal) switch and their circuit referring to Brake Light Symptom Diagnosis Brake Light Symptom Diagnosis.

Are they in good condition?
YES -
Go to Step 3.
NO -
Repair or replace.

3. Check brake light switch circuit

Disconnect connectors from ECM and ESP(R) control module.
Remove shift lock relay. (CVT model)
Remove all of brake light bulb.
Check for proper connection to "E01-6" wire of ECM connector.
If connections are OK, check brake light switch circuit for the following.
- Resistance of "GRN/WHT" wire terminal of brake light switch connector and ECM connector is less than 1 ohms (continuity check)
- Resistance between "GRN/WHT" wire terminal of brake light switch connector and vehicle body ground is infinity (ground short check)
- Voltage of between "GRN/WHT" wire terminal of brake light switch connector and vehicle body ground is 0 V with ignition switch tuned ON (power short check)

Are they in good condition?
YES -
Substitute a known-good ESP(R) hydraulic unit / control module assembly and recheck. If DTC C1016 is still detected, substitute a known-good ECM and/or check shift lock relay (CVT model).
NO -
Repair or replace defective wire.