MBE 900 4000 Troubleshooting

Section 26.1 Description of SID 230 – Throttle Control Fault

Section 26.1
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.‪

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 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" .‪

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Figure 2. Typical Accelerator Pedal Installation

The AP is an OEM-supplied part. Vendor sources may be contacted for additional design and installation details.‪


MBE 900/4000 Troubleshooting Guide - 6SE422
Generated on 10-13-2008

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