P/S Motor Assembly Inspection

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.

Check motor circuit referring to Step 2 to 3 of DTC C1141/C1142/C1143/C1145: MOTOR CIRCUIT FAILURE (Electric Type). If check result is not satisfactory, repair motor circuit.
Disconnect motor connector from steering gear case assembly with ignition switch turned OFF.
Check for resistance between terminals of motor connector.
If check result is not as specified, replace steering gear case assembly.

Motor circuit resistance
MOTOR CIRCUIT RESISTANCE SPECIFICATIONS

"E12-1" and "E12-2" (For motor) Approx. 1 Ω
Check for no continuity between each terminal of motor connector and body ground.
If check result is not as specified, replace steering gear case assembly.

Motor circuit resistance
MOTOR CIRCUIT RESISTANCE SPECIFICATIONS

Each terminal and body ground No continuity

Fig 1: Checking Motor Circuit Resistance
Courtesy of SUZUKI OF AMERICA CORP.
Hoist vehicle
Connect "E12" connector with ignition switch turned OFF.

Using ammeter (2), check that P/S motor current is as following table with idling engine. If check result is not satisfactory, check P/S control module referring to INSPECTION OF P/S CONTROL MODULE AND ITS CIRCUITS: ELECTRIC TYPE . If they are OK, replace steering gear case assembly.

NOTE: When P/S motor is cold condition (that is, armature coil of P/S motor is not heated), motor current in the following table can be measured.

Motor current at hoisted vehicle (reference value)

REFERENCE VALUE

Condition	When steering wheel is left at straight position: [A]	When steering wheel is turned left or right by turning speed with 90°/sec: [B]	When steering wheel is kept fully turned left or right until it stops: [C]
Motor current	Approx. 0 A	Approx. 0 - 5 A	Approx. 45 - 60 A

Fig 2: Identifying P/S Motor Circuit And P/S Control Module

Courtesy of SUZUKI OF AMERICA CORP.