SUBJECT:
ABS HECU REPLACEMENT DUE TO HESITATION CONCERNS
When addressing customer concerns regarding hesitation from the vehicle on hard acceleration, test drive the vehicle to verify the concern. Prior to test driving the vehicle, eliminate common Electronic Stability Control (ESC) trigger factors such as excessive or unevenly worn tires and slippery road conditions. If during hard acceleration testing the ESC light illuminates on the dash and abnormal hesitation is experienced, replace the ABS Hydraulic Electronic Control Unit (HECU) with a module containing the latest S/W version, as shown in the table and image below. NOTE: always verify latest applicable P/N information using EPC.
| Configuration | Part Number | Old S/W Version | New S/W Version |
|---|---|---|---|
| ABS HECU w/o EPB equipped | 58920-2T550 | 1.4 | 1.5 |
| ABS HECU with EPB equipped (SXL only) | 58920-4C550 | 1.6 | 1.7 |
- 50,000 mile fluid life
- Prevent overheating & brake fade with high grade formula
- Protects against performance decline due to water absorption; prevents corrosion of all metals within the braking system
- Synthetic, extended fluid life formula
- Size: 12 oz.
- For hydraulic actuated brake and clutch systems
- Non-silicone synthetic fluid
- Extreme thermal resistance and stability
- Increase braking performance and avoid brake fade
- Helps reduce vapour lock with wet boiling point of 399°F (204°C)
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