SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Work flow

| STEP | DESCRIPTION | |
| STEP 1 | Get detailed information about the conditions and the
environment when the incident occurred.
The following are key pieces of information required to make a good analysis: |
|
| WHAT | Vehicle Model, Engine, Transmission/Transaxle and the System (i.e. Radio). | |
| WHEN | Date, Time of Day, Weather Conditions, Frequency. | |
| WHERE | Road Conditions, Altitude and Traffic Situation | |
| HOW | System Symptoms, Operating Conditions (Other Components
Interaction).
Service History and if any After Market Accessories have been installed. |
|
| STEP 2 | Operate the system, road test if necessary.
Verify the parameter of the incident. If the problem cannot be duplicated, refer to “Incident Simulation Tests”. |
|
| STEP 3 | Get the proper diagnosis materials together including:
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments. |
|
| STEP 4 | Inspect the system for mechanical binding, loose
connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness Layouts. |
|
| STEP 5 | Repair or replace the incident circuit or component. | |
| STEP 6 | Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inadvertently created a new incident during your diagnosis or repair steps. | |
Control units and electrical parts
PRECAUTIONS


Vehicle information
How to check terminalComponent parts
Component Parts Location
Combination meter
Engine room right side
Engine room left side
No.
Component part
Description
1
Combination meter (Charge warning lamp)
The IC regulator warning function activates to illuminate the charge
warning
...
C1198 vacuum sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1198
VACUUM SEN CIR
When an open circuit is detected in vacuum sensor
circuit.
When a short circuit is detected in vacuum sensor
circuit.
&nb ...
C1199 brake booster
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1199
BRAKE BOOSTER
When brake booster vacuum is approx. 0 kPa (0 mm-
Hg) during engine running.
Harness or connector
Vacuum sensor (brake booster)
...