DTC B1557-13: Pyrotechnic Brake Pedal Deployment Control - Circuit open: Action

WARNING: Do not measure the resistance of a deployable device using any other method than that described below

NOTE: The deployable device connector has a locking plunger (orange tab) which should only fully lock when the two connectors are securely mated, male to female. If the plunger can move to the locked position easily when not mated (ie: using reasonable pressure), then this indicates that the connector is damaged. Repair the wiring harness as necessary

Using the Jaguar Land Rover approved diagnostic equipment, check datalogger signal - Deployment Control 4 Resistance (0x5B07). Refer to the electrical circuit diagrams and check the deployable brake pedal circuit for open circuit, high resistance
Disconnect the deployable brake pedal connector and apply light pressure to the connector plunger. If the plunger moves to the engaged position the connector is damaged. Repair the wiring harness as necessary
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new deployable brake pedal