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Check: diagnostic warning light control function Peugeot 406 I

ECU information available

Actuator test: no OK

Measure parameters: no OK

Characterised by

  • Short circuit to positive
  • Short circuit to earth
  • Open circuit

Checks to be carried out if fault is present

Short circuit to positive:

406

conditions under which the fault appearschecks to be made conditions for checking
engine running, short circuit to positive on terminal(s) 43 (88 V.NR)ignition on, engine management ECU disconnected, built-in systems interface disconnected; check: - no voltage on terminal(s) 43 (88 V.NR) - 1320 ignition injection control unit

All models, not 406

conditions under which the fault appearschecks to be made conditions for checking
engine running, short circuit to positive on terminal(s) 43 (88 V.NR)ignition on; engine ECU, disconnected, instrument panel disconnected: check: - no voltage on terminal(s) 43 (88 V.NR) - 1320 ignition injection control unit

Short circuit to earth

conditions under which the fault appearschecks to be made conditions for checking
engine running, presence of earth at terminal 43 on the 88 V.NR connectorignition off; engine ECU, disconnected: check: - no earth at terminal(s) 43 on the 88 V.NR (1320) connector

Open circuit

conditions under which the fault appearschecks to be made conditions for checking
engine running, open circuit on terminal(s) 43 (88 V.NR)ignition off - check the continuity of the line, (terminal 43 of the ECU 1320 (88 V.NR) connector)

A 406

B 106, 806, 206, 306, PARTNER