DTC Troubleshooting
DTC TROUBLESHOOTING TABLE
| Step |
Action |
YES |
NO |
| 1 |
Was "Electronic Stability Program Check" performed? |
Go to Step 2. |
Go to ELECTRONIC STABILITY PROGRAM CHECK . |
| 2 |
DTC check for ECM
- Disconnect SUZUKI scan tool with ignition switch turned OFF.
- Connect SUZUKI scan tool (SUZUKI-SDT) to DLC.
- Turn ignition switch ON and check DTC for ECM.
Is DTC P0504 detected? |
Go to DTC P0504: BRAKE SWITCH "A"/"B" CORRELATION
. |
Go to Step 3. |
| 3 |
Check brake light switch circuit
- Check brake light, brake light (brake pedal) switch and their circuit, referring to BRAKE LIGHT SYMPTOM DIAGNOSIS
.
Are they in good condition? |
Go to Step 4. |
Repair or replace. |
| 4 |
Check brake light switch circuit
- Disconnect connectors from ECM and ESP® control module.
- Remove shift lock relay. (A/T model)
- Remove all of brake light bulb.
- Check for proper connection to "E01-20" 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 between brake light switch connector and ECM connector is less than 1 Ω (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 stop switch connector and vehicle body ground is 0 V with ignition switch tuned ON (power short check)
Are they in good condition? |
Substitute a known-good ESP® hydraulic unit / control module assembly and recheck. If DTC C1016 is still detected, substitute a known-good ECM and/or check shift lock relay (A/T model). |
Repair or replace defective wire. |