Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000Z298
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: HEATING / AIR CONDITIONING: PTC HEATER ASSEMBLY: INSPECTION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSPECTION

PROCEDURE

1. INSPECT PTC HEATER ASSEMBLY

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 4

Always

Below 1 Ω

2 - 4

Always

Below 1 Ω

2 - 5

Always

Below 1 Ω

3 - 5

Always

Below 1 Ω
  • If the result is not as specified, replace the PTC heater assembly.

*a

Component without harness connected

(PTC Heater Assembly)