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Home >> Volvo >> 2003 >> C70 2.3 53, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Immobilizer Module (IMM) And Guard Lock And Alarm (GLA) - Diagnostic Trouble Codes (DTC) (Coupe)) >> IMM-312: Communication Link To Engine Control Module (ECM), Short-Circuit To Ground (1998) >> Short-circuit to ground >> Checking permanent short-circuit

Checking permanent short-circuit

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Check cables for a short-circuit to ground according to Short-circuit to ground, permanent faults .

CAUTION:

The engine control module (ECM) must not be disconnected until at least 4 minutes after switching off the ignition and the engine cooling fan (FC) stopping.

Fig 1: Identifying Control Module Connector Terminals
GLL125064Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired.