Description of SID 230 – Throttle Control Fault
SID 230 indicates that a fault has occurred in the throttle control.
The diagnostic condition is typically:
- Idle Validation Switch Open Circuit (230 05)
- Idle Validation Switch Short to Ground (230 12)
Accelerator Pedal – The accelerator pedal (AP) sends an input signal which the DDEC-VCU uses to calculate engine power proportional to the foot pedal position. See Figure “Location of DDEC-VCU and Wiring Harness Connectors” . This assembly is also referred to as the AP Sensor assembly.
| 1. Right-Side Dash | 4. 18-Pin Connector |
| 2. DDEC-VCU | 5. 21-Pin Connector |
| 3. 15-Pin Connector | |
Figure 1. Location of DDEC-VCU and Wiring Harness Connectors
Accelerator Pedal Installation– MBE electronic controls are compatible with an AP which has an output voltage that meets SAE J1843 and has less than 5% of voltage supply closed throttle variability. See Figure “Typical Accelerator Pedal Installation” .
Figure 2. Typical Accelerator Pedal Installation
The AP is an OEM-supplied part. Vendor sources may be contacted for additional design and installation details.
