How To Proceed With Troubleshooting

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

NEXT -- Continue to next step.

3. CHECK AND CLEAR DTC*

(a) Check if any DTCs are output Diagnosis System.

HINT
The suspension control ECU of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

4. CHECK AND CLEAR DTC*

(a) Check for a DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

5. PROBLEM SYMPTOM CONFIRMATION

(a) Measure the resistance according to the value(s) in the table below.

Result





B -- Go to step 7
A -- Continue to next step.

6. SYMPTOM SIMULATION

NEXT -- Continue to next step.

7. CHECK DTC*

(a) Check for a DTC Reading and Clearing Diagnostic Trouble Codes.

Result





B -- Go to step 9
A -- Continue to next step.

8. PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table Symptom Related Diagnostic Procedures.

NEXT -- Continue to next step.

9. DTC CHART

(a) Refer to the Diagnostic Trouble Code Chart Air Suspension System.

NEXT -- Continue to next step.

10. CIRCUIT INSPECTION*

(a) Inspect the circuit.

NEXT -- Continue to next step.

11. IDENTIFICATION OF PROBLEM

NEXT -- Continue to next step.

12. REPAIR OR REPLACE

NEXT -- Continue to next step.

13. CONFIRMATION TEST

NEXT -- END