Diagnosis And Testing-Power Mirror Switch

Remove power mirror switch.
Disconnect wire harness connector from back of power mirror switch.
Using an ohmmeter, test for continuity between the terminals of the switch (Fig 1 ) as shown in the Mirror Switch Testing tables.

Fig 1: Identifying Mirror Switch Connector Pin Call-Out
Courtesy of DAIMLERCHRYSLER CORP.
If test results are not obtained as shown in the Mirror Switch Testing Tables, (Fig 2 and Fig 3 ) replace the switch.

Fig 2: Mirror Switch Testing Table (1 Of 2)
Courtesy of DAIMLERCHRYSLER CORP.

Fig 3: Mirror Switch Testing Table (2 Of 2)
Courtesy of DAIMLERCHRYSLER CORP.